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61132556 = 2225160889
BaseRepresentation
bin1110100100110…
…0111100001100
311021000212002202
43221030330030
5111122220211
610022141032
71341422012
oct351147414
9137025082
1061132556
1131564881
1218581778
13c885614
1481948b2
15557853b
hex3a4cf0c

61132556 has 12 divisors (see below), whose sum is σ = 107409960. Its totient is φ = 30444000.

The previous prime is 61132549. The next prime is 61132559. The reversal of 61132556 is 65523116.

61132556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61132559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29441 + ... + 31448.

It is an arithmetic number, because the mean of its divisors is an integer number (8950830).

Almost surely, 261132556 is an apocalyptic number.

It is an amenable number.

61132556 is a deficient number, since it is larger than the sum of its proper divisors (46277404).

61132556 is a wasteful number, since it uses less digits than its factorization.

61132556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61144 (or 61142 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 61132556 is about 7818.7310990979. The cubic root of 61132556 is about 393.9346520840.

The spelling of 61132556 in words is "sixty-one million, one hundred thirty-two thousand, five hundred fifty-six".

Divisors: 1 2 4 251 502 1004 60889 121778 243556 15283139 30566278 61132556