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157332171 = 3471115831
BaseRepresentation
bin10010110000010…
…11001011001011
3101222001022011110
421120023023023
5310234112141
623340101403
73620205243
oct1130131313
9358038143
10157332171
118089aa97
1244834863
1326798379
1416c76b23
15dc2be16
hex960b2cb

157332171 has 8 divisors (see below), whose sum is σ = 214239744. Its totient is φ = 102656360.

The previous prime is 157332169. The next prime is 157332199. The reversal of 157332171 is 171233751.

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

It is a cyclic number.

It is not a de Polignac number, because 157332171 - 21 = 157332169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157332971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557775 + ... + 558056.

It is an arithmetic number, because the mean of its divisors is an integer number (26779968).

Almost surely, 2157332171 is an apocalyptic number.

157332171 is a deficient number, since it is larger than the sum of its proper divisors (56907573).

157332171 is a wasteful number, since it uses less digits than its factorization.

157332171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115881.

The product of its digits is 4410, while the sum is 30.

The square root of 157332171 is about 12543.2121484092. The cubic root of 157332171 is about 539.8492617670.

The spelling of 157332171 in words is "one hundred fifty-seven million, three hundred thirty-two thousand, one hundred seventy-one".

Divisors: 1 3 47 141 1115831 3347493 52444057 157332171