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61235132 = 2272186969
BaseRepresentation
bin1110100110010…
…1111110111100
311021020001210212
43221211332330
5111134011012
610024251552
71342330040
oct351457674
9137201725
1061235132
1131624952
1218610bb8
13c8c020a
1481c0020
155598b22
hex3a65fbc

61235132 has 12 divisors (see below), whose sum is σ = 122470320. Its totient is φ = 26243616.

The previous prime is 61235117. The next prime is 61235143. The reversal of 61235132 is 23153216.

61235132 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 61235098 and 61235107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093457 + ... + 1093512.

It is an arithmetic number, because the mean of its divisors is an integer number (10205860).

Almost surely, 261235132 is an apocalyptic number.

It is an amenable number.

61235132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61235132 is a wasteful number, since it uses less digits than its factorization.

61235132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186980 (or 2186978 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 61235132 is about 7825.2879819212. The cubic root of 61235132 is about 394.1548602342.

Adding to 61235132 its reverse (23153216), we get a palindrome (84388348).

The spelling of 61235132 in words is "sixty-one million, two hundred thirty-five thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 2186969 4373938 8747876 15308783 30617566 61235132