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61463913 = 377873719
BaseRepresentation
bin1110101001110…
…1110101101001
311021122200122020
43222131311221
5111213321123
610033215053
71344302040
oct352356551
9137580566
1061463913
1131770825
1218701489
13c9703a4
14823d557
1555e17e3
hex3a9dd69

61463913 has 16 divisors (see below), whose sum is σ = 93803520. Its totient is φ = 35068176.

The previous prime is 61463893. The next prime is 61463947. The reversal of 61463913 is 31936416.

It is not a de Polignac number, because 61463913 - 25 = 61463881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61463113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14668 + ... + 18386.

It is an arithmetic number, because the mean of its divisors is an integer number (5862720).

Almost surely, 261463913 is an apocalyptic number.

It is an amenable number.

61463913 is a deficient number, since it is larger than the sum of its proper divisors (32339607).

61463913 is a wasteful number, since it uses less digits than its factorization.

61463913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516.

The product of its digits is 11664, while the sum is 33.

The square root of 61463913 is about 7839.8924099760. The cubic root of 61463913 is about 394.6451184205.

The spelling of 61463913 in words is "sixty-one million, four hundred sixty-three thousand, nine hundred thirteen".

Divisors: 1 3 7 21 787 2361 3719 5509 11157 16527 26033 78099 2926853 8780559 20487971 61463913