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151220145344 = 2623316332479
BaseRepresentation
bin1000110011010101101…
…1000100110011000000
3112110022210101022121212
42030311123010303000
54434144324122334
6153245232305252
713632243012212
oct2146533046300
9473283338555
10151220145344
115914a914434
12253833a2228
131134c2a8258
1474678465b2
153e00c98ece
hex23356c4cc0

151220145344 has 56 divisors (see below), whose sum is σ = 313232962560. Its totient is φ = 72297586944.

The previous prime is 151220145319. The next prime is 151220145371. The reversal of 151220145344 is 443541022151.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 151220145344.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4639697 + ... + 4672175.

It is an arithmetic number, because the mean of its divisors is an integer number (5593445760).

Almost surely, 2151220145344 is an apocalyptic number.

It is an amenable number.

151220145344 is an abundant number, since it is smaller than the sum of its proper divisors (162012817216).

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

151220145344 is a wasteful number, since it uses less digits than its factorization.

151220145344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35677 (or 35667 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 151220145344 its reverse (443541022151), we get a palindrome (594761167495).

The spelling of 151220145344 in words is "one hundred fifty-one billion, two hundred twenty million, one hundred forty-five thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 23 32 46 64 92 184 368 736 1472 3163 6326 12652 25304 32479 50608 64958 72749 101216 129916 145498 202432 259832 290996 519664 581992 747017 1039328 1163984 1494034 2078656 2327968 2988068 4655936 5976136 11952272 23904544 47809088 102731077 205462154 410924308 821848616 1643697232 2362814771 3287394464 4725629542 6574788928 9451259084 18902518168 37805036336 75610072672 151220145344