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152311161 = 329471932
BaseRepresentation
bin10010001010000…
…01010101111001
3101121121012122010
421011001111321
5302442424121
623040320133
73526423602
oct1105012571
9347535563
10152311161
1178a806a2
1243013049
132572ab62
141632ada9
15d589376
hex9141579

152311161 has 24 divisors (see below), whose sum is σ = 215671680. Its totient is φ = 95456256.

The previous prime is 152311123. The next prime is 152311213. The reversal of 152311161 is 161113251.

It is a happy number.

It is not a de Polignac number, because 152311161 - 26 = 152311097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152311561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 789081 + ... + 789273.

It is an arithmetic number, because the mean of its divisors is an integer number (8986320).

Almost surely, 2152311161 is an apocalyptic number.

It is an amenable number.

152311161 is a deficient number, since it is larger than the sum of its proper divisors (63360519).

152311161 is an equidigital number, since it uses as much as digits as its factorization.

152311161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 272 counting only the distinct ones).

The product of its digits is 180, while the sum is 21.

The square root of 152311161 is about 12341.4407991936. The cubic root of 152311161 is about 534.0442493035.

The spelling of 152311161 in words is "one hundred fifty-two million, three hundred eleven thousand, one hundred sixty-one".

Divisors: 1 3 29 47 87 141 193 579 1363 4089 5597 9071 16791 27213 37249 111747 263059 789177 1080221 1750703 3240663 5252109 50770387 152311161