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157457413 = 1031152723
BaseRepresentation
bin10010110001010…
…01110000000101
3101222021122222001
421120221300011
5310302114123
623342505301
73621236341
oct1130516005
9358248861
10157457413
11809760a3
1244895231
1326810389
1416caa621
15dc540ad
hex9629c05

157457413 has 4 divisors (see below), whose sum is σ = 157611168. Its totient is φ = 157303660.

The previous prime is 157457411. The next prime is 157457429. The reversal of 157457413 is 314754751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157457413 - 21 = 157457411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157457411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75331 + ... + 77392.

It is an arithmetic number, because the mean of its divisors is an integer number (39402792).

Almost surely, 2157457413 is an apocalyptic number.

It is an amenable number.

157457413 is a deficient number, since it is larger than the sum of its proper divisors (153755).

157457413 is a wasteful number, since it uses less digits than its factorization.

157457413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153754.

The product of its digits is 58800, while the sum is 37.

The square root of 157457413 is about 12548.2035766081. The cubic root of 157457413 is about 539.9924701739.

The spelling of 157457413 in words is "one hundred fifty-seven million, four hundred fifty-seven thousand, four hundred thirteen".

Divisors: 1 1031 152723 157457413