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152779225 = 5223265703
BaseRepresentation
bin10010001101100…
…11100111011001
3101122110222200211
421012303213121
5303102413400
623054331121
73533413324
oct1106634731
9348428624
10152779225
1179270325
12431b9aa1
1325862c11
141640d7bb
15d62cdba
hex91b39d9

152779225 has 12 divisors (see below), whose sum is σ = 197683776. Its totient is φ = 116908880.

The previous prime is 152779223. The next prime is 152779259. The reversal of 152779225 is 522977251.

It is not a de Polignac number, because 152779225 - 21 = 152779223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152779223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132277 + ... + 133426.

It is an arithmetic number, because the mean of its divisors is an integer number (16473648).

Almost surely, 2152779225 is an apocalyptic number.

It is an amenable number.

152779225 is a deficient number, since it is larger than the sum of its proper divisors (44904551).

152779225 is a wasteful number, since it uses less digits than its factorization.

152779225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265736 (or 265731 counting only the distinct ones).

The product of its digits is 88200, while the sum is 40.

The square root of 152779225 is about 12360.3893547089. The cubic root of 152779225 is about 534.5907429994.

The spelling of 152779225 in words is "one hundred fifty-two million, seven hundred seventy-nine thousand, two hundred twenty-five".

Divisors: 1 5 23 25 115 575 265703 1328515 6111169 6642575 30555845 152779225