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157074331 = 679724169
BaseRepresentation
bin10010101110011…
…00001110011011
3101221120012110211
421113030032123
5310202334311
623330351551
73615052441
oct1127141633
9357505424
10157074331
11807342a7
124472b5b7
1326707bbb
1416c0ab91
15dbca821
hex95cc39b

157074331 has 8 divisors (see below), whose sum is σ = 161068880. Its totient is φ = 153128448.

The previous prime is 157074299. The next prime is 157074367. The reversal of 157074331 is 133470751.

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 157074331 - 25 = 157074299 is a prime.

It is a super-2 number, since 2×1570743312 = 49344690918195122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157074293 and 157074302.

It is not an unprimeable number, because it can be changed into a prime (157074431) 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, 5586 + ... + 18583.

It is an arithmetic number, because the mean of its divisors is an integer number (20133610).

Almost surely, 2157074331 is an apocalyptic number.

157074331 is a deficient number, since it is larger than the sum of its proper divisors (3994549).

157074331 is an equidigital number, since it uses as much as digits as its factorization.

157074331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24333.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 157074331 is about 12532.9298649597. The cubic root of 157074331 is about 539.5541942448.

The spelling of 157074331 in words is "one hundred fifty-seven million, seventy-four thousand, three hundred thirty-one".

Divisors: 1 67 97 6499 24169 1619323 2344393 157074331