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61968460 = 2253098423
BaseRepresentation
bin1110110001100…
…1000001001100
311022121022202011
43230121001030
5111330442320
610052111004
71351503031
oct354310114
9138538664
1061968460
1131a85904
1218905464
13cab8c38
148331388
15569105a
hex3b1904c

61968460 has 12 divisors (see below), whose sum is σ = 130133808. Its totient is φ = 24787376.

The previous prime is 61968457. The next prime is 61968479. The reversal of 61968460 is 6486916.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549192 + ... + 1549231.

It is an arithmetic number, because the mean of its divisors is an integer number (10844484).

Almost surely, 261968460 is an apocalyptic number.

It is an amenable number.

61968460 is an abundant number, since it is smaller than the sum of its proper divisors (68165348).

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

61968460 is a wasteful number, since it uses less digits than its factorization.

61968460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098432 (or 3098430 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 61968460 is about 7872.0048272343. The cubic root of 61968460 is about 395.7220356589.

The spelling of 61968460 in words is "sixty-one million, nine hundred sixty-eight thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 3098423 6196846 12393692 15492115 30984230 61968460