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157344853 = 791991707
BaseRepresentation
bin10010110000011…
…10010001010101
3101222001221120011
421120032101111
5310240013403
623340240221
73620260231
oct1130162125
9358057504
10157344853
11808a9576
1244840071
13267a1083
1416c7b5c1
15dc30a6d
hex960e455

157344853 has 4 divisors (see below), whose sum is σ = 159336640. Its totient is φ = 155353068.

The previous prime is 157344851. The next prime is 157344881. The reversal of 157344853 is 358443751.

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 157344853 - 21 = 157344851 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 (157344851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995775 + ... + 995932.

It is an arithmetic number, because the mean of its divisors is an integer number (39834160).

Almost surely, 2157344853 is an apocalyptic number.

It is an amenable number.

157344853 is a deficient number, since it is larger than the sum of its proper divisors (1991787).

157344853 is an equidigital number, since it uses as much as digits as its factorization.

157344853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991786.

The product of its digits is 201600, while the sum is 40.

The square root of 157344853 is about 12543.7176706111. The cubic root of 157344853 is about 539.8637665021.

The spelling of 157344853 in words is "one hundred fifty-seven million, three hundred forty-four thousand, eight hundred fifty-three".

Divisors: 1 79 1991707 157344853