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20590946937458 = 261785147195971
BaseRepresentation
bin1001010111010001101000…
…00100111110101001110010
32200220110211111101100000022
410223220310010332221302
510144330224403444313
6111443203405523442
74223434601064362
oct453506404765162
980813744340008
1020590946937458
116619631817767
1223867b6573582
13b649444a28b1
145128700369a2
1525a940044c08
hex12ba3413ea72

20590946937458 has 16 divisors (see below), whose sum is σ = 30937000629024. Its totient is φ = 10278613957920.

The previous prime is 20590946937439. The next prime is 20590946937469. The reversal of 20590946937458 is 85473964909502.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20590946937391 and 20590946937400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104973413 + ... + 105169383.

It is an arithmetic number, because the mean of its divisors is an integer number (1933562539314).

Almost surely, 220590946937458 is an apocalyptic number.

20590946937458 is a deficient number, since it is larger than the sum of its proper divisors (10346053691566).

20590946937458 is a wasteful number, since it uses less digits than its factorization.

20590946937458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281737.

The product of its (nonzero) digits is 587865600, while the sum is 71.

The spelling of 20590946937458 in words is "twenty trillion, five hundred ninety billion, nine hundred forty-six million, nine hundred thirty-seven thousand, four hundred fifty-eight".

Divisors: 1 2 617 1234 85147 170294 195971 391942 52535699 105071398 120914107 241828214 16686342737 33372685474 10295473468729 20590946937458