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145912479952 = 241719312633463
BaseRepresentation
bin1000011111100100001…
…1111100000011010000
3111221121220001222111011
42013321003330003100
54342312043324302
6151010430500304
713353563421121
oct2077103740320
9457556058434
10145912479952
1156976877908
1224341964694
13109b4796845
1470c2978048
153bded1c5d7
hex21f90fc0d0

145912479952 has 160 divisors (see below), whose sum is σ = 326584811520. Its totient is φ = 62694881280.

The previous prime is 145912479931. The next prime is 145912479953. The reversal of 145912479952 is 259974219541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145912479953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42132973 + ... + 42136435.

It is an arithmetic number, because the mean of its divisors is an integer number (2041155072).

Almost surely, 2145912479952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145912479952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163292405760).

145912479952 is an abundant number, since it is smaller than the sum of its proper divisors (180672331568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145912479952 is a wasteful number, since it uses less digits than its factorization.

145912479952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3795 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 58.

The spelling of 145912479952 in words is "one hundred forty-five billion, nine hundred twelve million, four hundred seventy-nine thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 17 19 31 34 38 62 68 76 124 136 152 248 263 272 304 323 496 526 527 589 646 1052 1054 1178 1292 2104 2108 2356 2584 3463 4208 4216 4471 4712 4997 5168 6926 8153 8432 8942 9424 9994 10013 13852 16306 17884 19988 20026 27704 32612 35768 39976 40052 55408 58871 65224 65797 71536 79952 80104 84949 107353 117742 130448 131594 138601 154907 160208 169898 214706 235484 263188 277202 309814 339796 429412 470968 526376 554404 619628 679592 858824 910769 941936 1052752 1108808 1118549 1239256 1359184 1717648 1821538 1825001 2039707 2217616 2237098 2478512 2633419 3643076 3650002 4079414 4474196 5266838 7286152 7300004 8158828 8948392 10533676 14572304 14600008 15483073 16317656 17304611 17896784 21067352 28233839 29200016 30966146 32635312 34609222 34675019 42134704 56467678 61932292 69218444 69350038 112935356 123864584 138436888 138700076 225870712 247729168 276873776 277400152 294178387 451741424 479975263 536442941 554800304 588356774 959950526 1072885882 1176713548 1919901052 2145771764 2353427096 3839802104 4291543528 4706854192 7679604208 8583087056 9119529997 18239059994 36478119988 72956239976 145912479952