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152105551 = 1329834861
BaseRepresentation
bin10010001000011…
…11001001001111
3101121012202120221
421010033021033
5302414334201
623032052211
73524606263
oct1104171117
9347182527
10152105551
1178950174
1242b34067
13256883b0
14162b60a3
15d5484a1
hex910f24f

152105551 has 16 divisors (see below), whose sum is σ = 171531360. Its totient is φ = 133902720.

The previous prime is 152105549. The next prime is 152105587. The reversal of 152105551 is 155501251.

It is a cyclic number.

It is not a de Polignac number, because 152105551 - 21 = 152105549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152105521) by changing a digit.

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, 28861 + ... + 33721.

It is an arithmetic number, because the mean of its divisors is an integer number (10720710).

Almost surely, 2152105551 is an apocalyptic number.

152105551 is a deficient number, since it is larger than the sum of its proper divisors (19425809).

152105551 is a wasteful number, since it uses less digits than its factorization.

152105551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986.

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 152105551 is about 12333.1079213635. The cubic root of 152105551 is about 533.8038329431.

The spelling of 152105551 in words is "one hundred fifty-two million, one hundred five thousand, five hundred fifty-one".

Divisors: 1 13 29 83 377 1079 2407 4861 31291 63193 140969 403463 1832597 5245019 11700427 152105551