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157418297686 = 21335809169079
BaseRepresentation
bin1001001010011011011…
…1001001100101010110
3120001022202022002012201
42102212313021211112
510034343041011221
6200152244235114
714241654311206
oct2224667114526
9501282262181
10157418297686
1160840585a91
122661309ba9a
1311ac9432310
147894ab6406
154164ec3891
hex24a6dc9956

157418297686 has 16 divisors (see below), whose sum is σ = 254299701600. Its totient is φ = 72652140288.

The previous prime is 157418297657. The next prime is 157418297717. The reversal of 157418297686 is 686792814751.

157418297686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1574182976863 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846495 + ... + 1015573.

It is an arithmetic number, because the mean of its divisors is an integer number (15893731350).

Almost surely, 2157418297686 is an apocalyptic number.

157418297686 is a deficient number, since it is larger than the sum of its proper divisors (96881403914).

157418297686 is a wasteful number, since it uses less digits than its factorization.

157418297686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204903.

The product of its digits is 40642560, while the sum is 64.

The spelling of 157418297686 in words is "one hundred fifty-seven billion, four hundred eighteen million, two hundred ninety-seven thousand, six hundred eighty-six".

Divisors: 1 2 13 26 35809 71618 169079 338158 465517 931034 2198027 4396054 6054549911 12109099822 78709148843 157418297686