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61263412 = 2272187979
BaseRepresentation
bin1110100110110…
…0111000110100
311021021111121021
43221230320310
5111140412122
610025030524
71342505350
oct351547064
9137244537
1061263412
1131644121
1218625444
13c900052
1481ca460
1555a21c7
hex3a6ce34

61263412 has 12 divisors (see below), whose sum is σ = 122526880. Its totient is φ = 26255736.

The previous prime is 61263373. The next prime is 61263431. The reversal of 61263412 is 21436216.

61263412 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093962 + ... + 1094017.

Almost surely, 261263412 is an apocalyptic number.

It is an amenable number.

61263412 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.

61263412 is a wasteful number, since it uses less digits than its factorization.

61263412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187990 (or 2187988 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 61263412 is about 7827.0947355963. The cubic root of 61263412 is about 394.2155279346.

Adding to 61263412 its reverse (21436216), we get a palindrome (82699628).

The spelling of 61263412 in words is "sixty-one million, two hundred sixty-three thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 2187979 4375958 8751916 15315853 30631706 61263412