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152120553 = 31371137401
BaseRepresentation
bin10010001000100…
…10110011101001
3101121020112011120
421010102303221
5302420324203
623032245453
73525001104
oct1104226351
9347215146
10152120553
1178960472
1242b40889
1325692180
14162bb73b
15d54cb53
hex9112ce9

152120553 has 32 divisors (see below), whose sum is σ = 223679232. Its totient is φ = 91392000.

The previous prime is 152120543. The next prime is 152120561. The reversal of 152120553 is 355021251.

It is a happy number.

It is not a de Polignac number, because 152120553 - 26 = 152120489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (152120513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379153 + ... + 379553.

It is an arithmetic number, because the mean of its divisors is an integer number (6989976).

Almost surely, 2152120553 is an apocalyptic number.

152120553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

152120553 is a deficient number, since it is larger than the sum of its proper divisors (71558679).

152120553 is a wasteful number, since it uses less digits than its factorization.

152120553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 152120553 is about 12333.7161066728. The cubic root of 152120553 is about 533.8213818574.

The spelling of 152120553 in words is "one hundred fifty-two million, one hundred twenty thousand, five hundred fifty-three".

Divisors: 1 3 13 39 71 137 213 401 411 923 1203 1781 2769 5213 5343 9727 15639 28471 29181 54937 85413 126451 164811 370123 379353 714181 1110369 2142543 3900527 11701581 50706851 152120553