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151138948 = 22137389709
BaseRepresentation
bin10010000001000…
…11001010000100
3101112101122122211
421000203022010
5302142421243
622555233204
73513442222
oct1100431204
9345348584
10151138948
117834aa24
1242748804
132540a43c
1416103b12
15d406d9d
hex9023284

151138948 has 24 divisors (see below), whose sum is σ = 267485400. Its totient is φ = 74719488.

The previous prime is 151138931. The next prime is 151138963. The reversal of 151138948 is 849831151.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1272384 + 149866564 = 1128^2 + 12242^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 151138948.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212818 + ... + 213526.

It is an arithmetic number, because the mean of its divisors is an integer number (11145225).

Almost surely, 2151138948 is an apocalyptic number.

It is an amenable number.

151138948 is a deficient number, since it is larger than the sum of its proper divisors (116346452).

151138948 is a wasteful number, since it uses less digits than its factorization.

151138948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1237 counting only the distinct ones).

The product of its digits is 34560, while the sum is 40.

The square root of 151138948 is about 12293.8581413647. The cubic root of 151138948 is about 532.6706872719.

The spelling of 151138948 in words is "one hundred fifty-one million, one hundred thirty-eight thousand, nine hundred forty-eight".

Divisors: 1 2 4 137 274 389 548 709 778 1418 1556 2836 53293 97133 106586 194266 213172 275801 388532 551602 1103204 37784737 75569474 151138948