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30256208015 = 511235926871
BaseRepresentation
bin11100001011011010…
…010001100010001111
32220002121101121200212
4130023122101202033
5443431042124030
621522143313035
72120530344665
oct341332214217
986077347625
1030256208015
11119169279a0
125a448ab77b
132b1249c387
14167049cc35
15bc1387595
hex70b69188f

30256208015 has 48 divisors (see below), whose sum is σ = 42048723456. Its totient is φ = 20688043200.

The previous prime is 30256208009. The next prime is 30256208023. The reversal of 30256208015 is 51080265203.

It is not a de Polignac number, because 30256208015 - 24 = 30256207999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 4400030 + ... + 4406900.

It is an arithmetic number, because the mean of its divisors is an integer number (876015072).

Almost surely, 230256208015 is an apocalyptic number.

30256208015 is a deficient number, since it is larger than the sum of its proper divisors (11792515441).

30256208015 is a wasteful number, since it uses less digits than its factorization.

30256208015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028 (or 6969 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 30256208015 in words is "thirty billion, two hundred fifty-six million, two hundred eight thousand, fifteen".

Divisors: 1 5 11 23 55 59 115 253 295 649 1265 1357 3245 3481 6785 6871 14927 17405 34355 38291 74635 75581 80063 158033 191455 377905 400315 405389 790165 880693 1738363 2026945 4403465 4459279 8691815 9323947 22296395 23917951 46619735 102563417 119589755 263097461 512817085 550112873 1315487305 2750564365 6051241603 30256208015