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157143391073 = 23103173383429
BaseRepresentation
bin1001001001011001111…
…0011101101101100001
3120000121121000101020022
42102112132131231201
510033312202003243
6200105104123225
714232105533204
oct2222636355541
9500547011208
10157143391073
116070a390639
1226557006515
1311a844ac096
14786a39593b
15414acbeb68
hex249679db61

157143391073 has 16 divisors (see below), whose sum is σ = 166525182720. Its totient is φ = 147990938304.

The previous prime is 157143391063. The next prime is 157143391091. The reversal of 157143391073 is 370193341751.

It is a cyclic number.

It is not a de Polignac number, because 157143391073 - 222 = 157139196769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157143391033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218123 + ... + 601551.

It is an arithmetic number, because the mean of its divisors is an integer number (10407823920).

Almost surely, 2157143391073 is an apocalyptic number.

It is an amenable number.

157143391073 is a deficient number, since it is larger than the sum of its proper divisors (9381791647).

157143391073 is a wasteful number, since it uses less digits than its factorization.

157143391073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383728.

The product of its (nonzero) digits is 238140, while the sum is 44.

The spelling of 157143391073 in words is "one hundred fifty-seven billion, one hundred forty-three million, three hundred ninety-one thousand, seventy-three".

Divisors: 1 23 103 173 2369 3979 17819 383429 409837 8818867 39493187 66333217 908343301 1525663991 6832321351 157143391073