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157250093 = 71113295417
BaseRepresentation
bin10010101111101…
…11001000101101
3101221220010120112
421113313020231
5310224000333
623334225405
73616414040
oct1127671055
9357803515
10157250093
1180844360
12447b5265
1326769bc0
1416c54c57
15dc12948
hex95f722d

157250093 has 32 divisors (see below), whose sum is σ = 218453760. Its totient is φ = 109186560.

The previous prime is 157250087. The next prime is 157250117. The reversal of 157250093 is 390052751.

It is not a de Polignac number, because 157250093 - 214 = 157233709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157250063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26321 + ... + 31737.

It is an arithmetic number, because the mean of its divisors is an integer number (6826680).

Almost surely, 2157250093 is an apocalyptic number.

157250093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

157250093 is a deficient number, since it is larger than the sum of its proper divisors (61203667).

157250093 is a wasteful number, since it uses less digits than its factorization.

157250093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 157250093 is about 12539.9399121367. The cubic root of 157250093 is about 539.7553681598.

The spelling of 157250093 in words is "one hundred fifty-seven million, two hundred fifty thousand, ninety-three".

Divisors: 1 7 11 13 29 77 91 143 203 319 377 1001 2233 2639 4147 5417 29029 37919 59587 70421 157093 417109 492947 774631 1099651 1728023 2042209 5422417 12096161 14295463 22464299 157250093