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157493083 = 1117842209
BaseRepresentation
bin10010110001100…
…10011101011011
3101222100110220011
421120302131123
5310304234313
623343342351
73621445336
oct1130623533
9358313804
10157493083
118099a980
12448b19b7
1326823697
1416cb961d
15dc5e93d
hex963275b

157493083 has 8 divisors (see below), whose sum is σ = 181917360. Its totient is φ = 134753280.

The previous prime is 157493069. The next prime is 157493087. The reversal of 157493083 is 380394751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-157493083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157493087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420918 + ... + 421291.

It is an arithmetic number, because the mean of its divisors is an integer number (22739670).

Almost surely, 2157493083 is an apocalyptic number.

157493083 is a deficient number, since it is larger than the sum of its proper divisors (24424277).

157493083 is a wasteful number, since it uses less digits than its factorization.

157493083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842237.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 157493083 is about 12549.6248151090. The cubic root of 157493083 is about 540.0332432667.

The spelling of 157493083 in words is "one hundred fifty-seven million, four hundred ninety-three thousand, eighty-three".

Divisors: 1 11 17 187 842209 9264299 14317553 157493083