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152142945 = 3517617967
BaseRepresentation
bin10010001000110…
…00010001100001
3101121021122212220
421010120101201
5302422033240
623032541253
73525123303
oct1104302141
9347248786
10152142945
1178976279
1242b51829
132569c416
14162c5973
15d5545d0
hex9118461

152142945 has 32 divisors (see below), whose sum is σ = 258432768. Its totient is φ = 76167168.

The previous prime is 152142943. The next prime is 152142971. The reversal of 152142945 is 549241251.

It is not a de Polignac number, because 152142945 - 21 = 152142943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152142943) 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, 156852 + ... + 157818.

It is an arithmetic number, because the mean of its divisors is an integer number (8076024).

Almost surely, 2152142945 is an apocalyptic number.

152142945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

152142945 is a deficient number, since it is larger than the sum of its proper divisors (106289823).

152142945 is a wasteful number, since it uses less digits than its factorization.

152142945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609.

The product of its digits is 14400, while the sum is 33.

The square root of 152142945 is about 12334.6238288810. The cubic root of 152142945 is about 533.8475732380.

The spelling of 152142945 in words is "one hundred fifty-two million, one hundred forty-two thousand, nine hundred forty-five".

Divisors: 1 3 5 15 17 51 85 255 617 967 1851 2901 3085 4835 9255 10489 14505 16439 31467 49317 52445 82195 157335 246585 596639 1789917 2983195 8949585 10142863 30428589 50714315 152142945