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149617960 = 23529128981
BaseRepresentation
bin10001110101011…
…11110100101000
3101102112101020221
420322233310220
5301300233320
622502455424
73464505652
oct1072576450
9342471227
10149617960
1177501208
1242134574
1324cc704b
1415c296d2
15d2063aa
hex8eafd28

149617960 has 32 divisors (see below), whose sum is σ = 348251400. Its totient is φ = 57783040.

The previous prime is 149617957. The next prime is 149617961. The reversal of 149617960 is 69716941.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 148498596 + 1119364 = 12186^2 + 1058^2 .

It is not an unprimeable number, because it can be changed into a prime (149617961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63331 + ... + 65650.

Almost surely, 2149617960 is an apocalyptic number.

149617960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149617960 is an abundant number, since it is smaller than the sum of its proper divisors (198633440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149617960 is a wasteful number, since it uses less digits than its factorization.

149617960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129021 (or 129017 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 149617960 is about 12231.8420526101. The cubic root of 149617960 is about 530.8778143306.

The spelling of 149617960 in words is "one hundred forty-nine million, six hundred seventeen thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 580 1160 128981 257962 515924 644905 1031848 1289810 2579620 3740449 5159240 7480898 14961796 18702245 29923592 37404490 74808980 149617960