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157109374 = 2179438853
BaseRepresentation
bin10010101110101…
…00110001111110
3101221121222112201
421113110301332
5310204444444
623331222114
73615256552
oct1127246176
9357558481
10157109374
1180758664
124474793a
132671ab36
1416c19862
15dbd5dd4
hex95d4c7e

157109374 has 8 divisors (see below), whose sum is σ = 236981160. Its totient is φ = 78115656.

The previous prime is 157109369. The next prime is 157109377. The reversal of 157109374 is 473901751.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157109377) 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, 219069 + ... + 219784.

It is an arithmetic number, because the mean of its divisors is an integer number (29622645).

Almost surely, 2157109374 is an apocalyptic number.

157109374 is a deficient number, since it is larger than the sum of its proper divisors (79871786).

157109374 is a wasteful number, since it uses less digits than its factorization.

157109374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439034.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 157109374 is about 12534.3278240199. The cubic root of 157109374 is about 539.5943157838.

The spelling of 157109374 in words is "one hundred fifty-seven million, one hundred nine thousand, three hundred seventy-four".

Divisors: 1 2 179 358 438853 877706 78554687 157109374