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20468404007 = 23311031092557
BaseRepresentation
bin10011000100000000…
…110000111100100111
31221211110220122202022
4103010000300330213
5313404402412012
613223020533355
71323140364152
oct230400607447
957743818668
1020468404007
118753975977
123b729b125b
131c1274947c
14dc25b4c99
157ebe42472
hex4c4030f27

20468404007 has 32 divisors (see below), whose sum is σ = 22474383360. Its totient is φ = 18583551360.

The previous prime is 20468403973. The next prime is 20468404057. The reversal of 20468404007 is 70040486402.

It is a cyclic number.

It is not a de Polignac number, because 20468404007 - 224 = 20451626791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20468404057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8003573 + ... + 8006129.

It is an arithmetic number, because the mean of its divisors is an integer number (702324480).

Almost surely, 220468404007 is an apocalyptic number.

20468404007 is a deficient number, since it is larger than the sum of its proper divisors (2005979353).

20468404007 is a wasteful number, since it uses less digits than its factorization.

20468404007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823.

The product of its (nonzero) digits is 43008, while the sum is 35.

The spelling of 20468404007 in words is "twenty billion, four hundred sixty-eight million, four hundred four thousand, seven".

Divisors: 1 23 31 103 109 713 2369 2507 2557 3193 3379 11227 58811 73439 77717 79267 258221 263371 278713 348037 1823141 6057533 6410399 8004851 8164501 8640103 28707439 187783523 198722369 660271097 889930609 20468404007