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115057238 = 257528619
BaseRepresentation
bin1101101101110…
…10001001010110
322000111111212012
412312322021112
5213423312423
615230024222
72564653562
oct666721126
9260444765
10115057238
1159a4622a
1232648072
131aab620a
14113d06a2
15a17b078
hex6dba256

115057238 has 4 divisors (see below), whose sum is σ = 172585860. Its totient is φ = 57528618.

The previous prime is 115057211. The next prime is 115057277. The reversal of 115057238 is 832750511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 832750511 = 6047137713.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28764308 + ... + 28764311.

It is an arithmetic number, because the mean of its divisors is an integer number (43146465).

Almost surely, 2115057238 is an apocalyptic number.

115057238 is a deficient number, since it is larger than the sum of its proper divisors (57528622).

115057238 is an equidigital number, since it uses as much as digits as its factorization.

115057238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57528621.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 115057238 is about 10726.4736982850. The cubic root of 115057238 is about 486.3750794948.

The spelling of 115057238 in words is "one hundred fifteen million, fifty-seven thousand, two hundred thirty-eight".

Divisors: 1 2 57528619 115057238