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152729245 = 5238112829
BaseRepresentation
bin10010001101001…
…11011010011101
3101122101110010201
421012213122131
5303044313440
623053303501
73533114524
oct1106473235
9348343121
10152729245
1179236819
1243194b91
1325846246
14163d94bb
15d61d19a
hex91a769d

152729245 has 8 divisors (see below), whose sum is σ = 183366360. Its totient is φ = 122122560.

The previous prime is 152729243. The next prime is 152729263. The reversal of 152729245 is 542927251.

It can be written as a sum of positive squares in 4 ways, for example, as 1390041 + 151339204 = 1179^2 + 12302^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 152729245 - 21 = 152729243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152729243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5491 + ... + 18319.

It is an arithmetic number, because the mean of its divisors is an integer number (22920795).

Almost surely, 2152729245 is an apocalyptic number.

It is an amenable number.

152729245 is a deficient number, since it is larger than the sum of its proper divisors (30637115).

152729245 is a wasteful number, since it uses less digits than its factorization.

152729245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15215.

The product of its digits is 50400, while the sum is 37.

The square root of 152729245 is about 12358.3674083594. The cubic root of 152729245 is about 534.5324415311.

The spelling of 152729245 in words is "one hundred fifty-two million, seven hundred twenty-nine thousand, two hundred forty-five".

Divisors: 1 5 2381 11905 12829 64145 30545849 152729245