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157826248209942 = 231317190762414431
BaseRepresentation
bin100011111000101011001001…
…011101011111011000010110
3202200211001010121012201202020
4203320223021131133120112
5131141311124020204232
61315400213312154010
745146366363006214
oct4370531135373026
9680731117181666
10157826248209942
1146319810657994
121584b94b238906
136a0ac4a14b280
142ad8b8ca3dcb4
15133a6524a2e2c
hex8f8ac975f616

157826248209942 has 64 divisors (see below), whose sum is σ = 360118290438144. Its totient is φ = 45681370974720.

The previous prime is 157826248209937. The next prime is 157826248210003. The reversal of 157826248209942 is 249902842628751.

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, 28678534 + ... + 33735897.

It is an arithmetic number, because the mean of its divisors is an integer number (5626848288096).

Almost surely, 2157826248209942 is an apocalyptic number.

157826248209942 is an abundant number, since it is smaller than the sum of its proper divisors (202292042228202).

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

157826248209942 is a wasteful number, since it uses less digits than its factorization.

157826248209942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62416373.

The product of its (nonzero) digits is 278691840, while the sum is 69.

The spelling of 157826248209942 in words is "one hundred fifty-seven trillion, eight hundred twenty-six billion, two hundred forty-eight million, two hundred nine thousand, nine hundred forty-two".

Divisors: 1 2 3 6 13 17 26 34 39 51 78 102 221 442 663 1326 1907 3814 5721 11442 24791 32419 49582 64838 74373 97257 148746 194514 421447 842894 1264341 2528682 62414431 124828862 187243293 374486586 811387603 1061045327 1622775206 2122090654 2434162809 3183135981 4868325618 6366271962 13793589251 27587178502 41380767753 82761535506 119024319917 238048639834 357072959751 714145919502 1547316158921 2023413438589 3094632317842 4046826877178 4641948476763 6070240315767 9283896953526 12140480631534 26304374701657 52608749403314 78913124104971 157826248209942