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152128651 = 1217125003
BaseRepresentation
bin10010001000101…
…00110010001011
3101121020221021111
421010110302023
5302421104101
623032351151
73525033523
oct1104246213
9347227244
10152128651
1178966564
1242b454b7
1325695a6c
14162c0683
15d550251
hex9114c8b

152128651 has 4 divisors (see below), whose sum is σ = 152254872. Its totient is φ = 152002432.

The previous prime is 152128643. The next prime is 152128657. The reversal of 152128651 is 156821251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156821251 = 1271234813.

It is a cyclic number.

It is not a de Polignac number, because 152128651 - 23 = 152128643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152128657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61285 + ... + 63718.

It is an arithmetic number, because the mean of its divisors is an integer number (38063718).

Almost surely, 2152128651 is an apocalyptic number.

152128651 is a deficient number, since it is larger than the sum of its proper divisors (126221).

152128651 is a wasteful number, since it uses less digits than its factorization.

152128651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126220.

The product of its digits is 4800, while the sum is 31.

The square root of 152128651 is about 12334.0443894126. The cubic root of 152128651 is about 533.8308541887.

The spelling of 152128651 in words is "one hundred fifty-two million, one hundred twenty-eight thousand, six hundred fifty-one".

Divisors: 1 1217 125003 152128651