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61401832 = 237675229
BaseRepresentation
bin1110101000111…
…0101011101000
311021112112110221
43222032223220
5111204324312
610032015424
71343623042
oct352165350
9137475427
1061401832
1131729118
1218691574
13c94b05b
148224a92
1555cd207
hex3a8eae8

61401832 has 8 divisors (see below), whose sum is σ = 115128450. Its totient is φ = 30700912.

The previous prime is 61401829. The next prime is 61401853. The reversal of 61401832 is 23810416.

It can be written as a sum of positive squares in only one way, i.e., 61371556 + 30276 = 7834^2 + 174^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 61401797 and 61401806.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3837607 + ... + 3837622.

Almost surely, 261401832 is an apocalyptic number.

It is an amenable number.

61401832 is a deficient number, since it is larger than the sum of its proper divisors (53726618).

61401832 is a wasteful number, since it uses less digits than its factorization.

61401832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675235 (or 7675231 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 61401832 is about 7835.9321079244. The cubic root of 61401832 is about 394.5122045654.

The spelling of 61401832 in words is "sixty-one million, four hundred one thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 7675229 15350458 30700916 61401832