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30885403455 = 32515719492243
BaseRepresentation
bin11100110000111010…
…011101101100111111
32221201110100001120200
4130300322131230333
51001223130402310
622104421214543
72142240412014
oct346072355477
987643301520
1030885403455
111210a006825
125b9b561453
132bb294a97a
1416cdc8570b
15c0b7209c0
hex730e9db3f

30885403455 has 48 divisors (see below), whose sum is σ = 53927359200. Its totient is φ = 16351605504.

The previous prime is 30885403411. The next prime is 30885403481. The reversal of 30885403455 is 55430458803.

It is not a de Polignac number, because 30885403455 - 227 = 30751185727 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 30885403455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13768564 + ... + 13770806.

It is an arithmetic number, because the mean of its divisors is an integer number (1123486650).

Almost surely, 230885403455 is an apocalyptic number.

30885403455 is a deficient number, since it is larger than the sum of its proper divisors (23041955745).

30885403455 is a wasteful number, since it uses less digits than its factorization.

30885403455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360 (or 4357 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 30885403455 in words is "thirty billion, eight hundred eighty-five million, four hundred three thousand, four hundred fifty-five".

Divisors: 1 3 5 9 15 45 157 471 785 1413 1949 2243 2355 5847 6729 7065 9745 11215 17541 20187 29235 33645 87705 100935 305993 352151 917979 1056453 1529965 1760755 2753937 3169359 4371607 4589895 5282265 13114821 13769685 15846795 21858035 39344463 65574105 196722315 686342299 2059026897 3431711495 6177080691 10295134485 30885403455