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30145165212 = 223411072712113
BaseRepresentation
bin11100000100110010…
…101011011110011100
32212210212110001121110
4130010302223132130
5443214130241322
621503135302020
72115011451021
oct340462533634
985725401543
1030145165212
111186a183888
125a1367a910
132ac5490486
14165d835548
15bb6750c0c
hex704cab79c

30145165212 has 96 divisors (see below), whose sum is σ = 73030616064. Its totient is φ = 9671270400.

The previous prime is 30145165207. The next prime is 30145165229. The reversal of 30145165212 is 21256154103.

It is a self number, because there is not a number n which added to its sum of digits gives 30145165212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14265468 + ... + 14267580.

It is an arithmetic number, because the mean of its divisors is an integer number (760735584).

Almost surely, 230145165212 is an apocalyptic number.

It is an amenable number.

30145165212 is an abundant number, since it is smaller than the sum of its proper divisors (42885450852).

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

30145165212 is a wasteful number, since it uses less digits than its factorization.

30145165212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539 (or 2537 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

It can be divided in two parts, 301451 and 65212, that added together give a palindrome (366663).

The spelling of 30145165212 in words is "thirty billion, one hundred forty-five million, one hundred sixty-five thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 41 82 107 123 164 214 246 271 321 428 492 542 642 813 1084 1284 1626 2113 3252 4226 4387 6339 8452 8774 11111 12678 13161 17548 22222 25356 26322 28997 33333 44444 52644 57994 66666 86633 86991 115988 133332 173266 173982 226091 259899 346532 347964 452182 519798 572623 678273 904364 1039596 1145246 1188877 1356546 1717869 2290492 2377754 2713092 3435738 3566631 4755508 6871476 7133262 9269731 14266524 18539462 23477543 27809193 37078924 46955086 55618386 61270661 70432629 93910172 111236772 122541322 140865258 183811983 245082644 281730516 367623966 735247932 2512097101 5024194202 7536291303 10048388404 15072582606 30145165212