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157605631027 = 1312123510079
BaseRepresentation
bin1001001011001000000…
…1110001010000110011
3120001210210210121020121
42102302001301100303
510040234020143102
6200223015351111
714246420521435
oct2226201612063
9501723717217
10157605631027
11609272a7329
1226665982497
1311b291a3050
1478b191c655
154176679b37
hex24b2071433

157605631027 has 4 divisors (see below), whose sum is σ = 169729141120. Its totient is φ = 145482120936.

The previous prime is 157605630989. The next prime is 157605631033. The reversal of 157605631027 is 720136506751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720136506751 = 2141336355211.

It is a cyclic number.

It is not a de Polignac number, because 157605631027 - 211 = 157605628979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157605631627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6061755027 + ... + 6061755052.

It is an arithmetic number, because the mean of its divisors is an integer number (42432285280).

Almost surely, 2157605631027 is an apocalyptic number.

157605631027 is a deficient number, since it is larger than the sum of its proper divisors (12123510093).

157605631027 is a wasteful number, since it uses less digits than its factorization.

157605631027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12123510092.

The product of its (nonzero) digits is 264600, while the sum is 43.

The spelling of 157605631027 in words is "one hundred fifty-seven billion, six hundred five million, six hundred thirty-one thousand, twenty-seven".

Divisors: 1 13 12123510079 157605631027