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431057025972 = 223327138937861
BaseRepresentation
bin1100100010111010000…
…00000011101110110100
31112012122002211202102000
412101131000003232310
524030301044312342
6530005212015300
743066665160146
oct6213500035664
91465562752360
10431057025972
111568a04a9711
126b660161530
13318579b89a1
1416c12b60c96
15b32d21a44c
hex645d003bb4

431057025972 has 96 divisors (see below), whose sum is σ = 1124592268800. Its totient is φ = 142783689600.

The previous prime is 431057025911. The next prime is 431057025979. The reversal of 431057025972 is 279520750134.

It is a happy number.

431057025972 is a `hidden beast` number, since 4 + 3 + 1 + 0 + 57 + 0 + 2 + 597 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431057025979) 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, 11366322 + ... + 11404182.

It is an arithmetic number, because the mean of its divisors is an integer number (11714502800).

Almost surely, 2431057025972 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 431057025972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562296134400).

431057025972 is an abundant number, since it is smaller than the sum of its proper divisors (693535242828).

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

431057025972 is a wasteful number, since it uses less digits than its factorization.

431057025972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38534 (or 38526 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 431057025972 in words is "four hundred thirty-one billion, fifty-seven million, twenty-five thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 271 389 542 778 813 1084 1167 1556 1626 2334 2439 3252 3501 4668 4878 7002 7317 9756 10503 14004 14634 21006 29268 37861 42012 75722 105419 113583 151444 210838 227166 316257 340749 421676 454332 632514 681498 948771 1022247 1265028 1362996 1897542 2044494 2846313 3795084 4088988 5692626 10260331 11385252 14727929 20520662 29455858 30780993 41041324 44183787 58911716 61561986 88367574 92342979 123123972 132551361 176735148 184685958 265102722 277028937 369371916 397654083 530205444 554057874 795308166 1108115748 1590616332 3991268759 7982537518 11973806277 15965075036 23947612554 35921418831 47895225108 71842837662 107764256493 143685675324 215528512986 431057025972