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30905540810 = 2561107473503
BaseRepresentation
bin11100110010000111…
…010010000011001010
32221202212020010211122
4130302013102003022
51001243304301220
622110420555242
72142603522344
oct346207220312
987685203748
1030905540810
111211a410271
125ba6252b22
132bb6b7b771
1416d2808294
15c0d39c425
hex7321d20ca

30905540810 has 32 divisors (see below), whose sum is σ = 57070490112. Its totient is φ = 12045890880.

The previous prime is 30905540807. The next prime is 30905540821. The reversal of 30905540810 is 1804550903.

It is a super-2 number, since 2×309055408102 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171482 + ... + 302021.

It is an arithmetic number, because the mean of its divisors is an integer number (1783452816).

Almost surely, 230905540810 is an apocalyptic number.

30905540810 is a deficient number, since it is larger than the sum of its proper divisors (26164949302).

30905540810 is a wasteful number, since it uses less digits than its factorization.

30905540810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473678.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 30905540810 in words is "thirty billion, nine hundred five million, five hundred forty thousand, eight hundred ten".

Divisors: 1 2 5 10 61 107 122 214 305 535 610 1070 6527 13054 32635 65270 473503 947006 2367515 4735030 28883683 50664821 57767366 101329642 144418415 253324105 288836830 506648210 3090554081 6181108162 15452770405 30905540810