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150838857 = 321310491229
BaseRepresentation
bin10001111110110…
…01111001001001
3101111211102000100
420333121321021
5302103320412
622545000013
73511052301
oct1077317111
9344742010
10150838857
1178165514
1242623009
1325333980
1416066601
15d397edc
hex8fd9e49

150838857 has 24 divisors (see below), whose sum is σ = 235053000. Its totient is φ = 92659968.

The previous prime is 150838837. The next prime is 150838927. The reversal of 150838857 is 758838051.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 73205136 + 77633721 = 8556^2 + 8811^2 .

It is not a de Polignac number, because 150838857 - 28 = 150838601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (150838837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122119 + ... + 123347.

It is an arithmetic number, because the mean of its divisors is an integer number (9793875).

Almost surely, 2150838857 is an apocalyptic number.

It is an amenable number.

150838857 is a deficient number, since it is larger than the sum of its proper divisors (84214143).

150838857 is a wasteful number, since it uses less digits than its factorization.

150838857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The square root of 150838857 is about 12281.6471615171. The cubic root of 150838857 is about 532.3179090422.

The spelling of 150838857 in words is "one hundred fifty million, eight hundred thirty-eight thousand, eight hundred fifty-seven".

Divisors: 1 3 9 13 39 117 1049 1229 3147 3687 9441 11061 13637 15977 40911 47931 122733 143793 1289221 3867663 11602989 16759873 50279619 150838857