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158385038 = 27231074597
BaseRepresentation
bin10010111000011…
…00001110001110
3102001000210102112
421130030032032
5311021310123
623414424022
73632151650
oct1134141616
9361023375
10158385038
118144a029
1245062012
1326a76676
141706c6d0
15dd88d78
hex970c38e

158385038 has 32 divisors (see below), whose sum is σ = 286032384. Its totient is φ = 64307232.

The previous prime is 158385013. The next prime is 158385043. The reversal of 158385038 is 830583851.

It is a super-2 number, since 2×1583850382 = 50171640524522888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 158384986 and 158385004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32156 + ... + 36752.

It is an arithmetic number, because the mean of its divisors is an integer number (8938512).

Almost surely, 2158385038 is an apocalyptic number.

158385038 is a deficient number, since it is larger than the sum of its proper divisors (127647346).

158385038 is a wasteful number, since it uses less digits than its factorization.

158385038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 158385038 is about 12585.1117595356. Note that the first 3 decimals coincide. The cubic root of 158385038 is about 541.0508093680.

The spelling of 158385038 in words is "one hundred fifty-eight million, three hundred eighty-five thousand, thirty-eight".

Divisors: 1 2 7 14 23 46 107 161 214 322 749 1498 2461 4597 4922 9194 17227 32179 34454 64358 105731 211462 491879 740117 983758 1480234 3443153 6886306 11313217 22626434 79192519 158385038