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61057676744 = 2345131691161
BaseRepresentation
bin111000110111010100…
…100011010111001000
312211121012210100110222
4320313110203113020
52000021231123434
644014405525212
74261031455241
oct706724432710
9184535710428
1061057676744
1123992515279
12ba00113808
1359b090ca0c
142d53135cc8
1518c552872e
hexe375235c8

61057676744 has 16 divisors (see below), whose sum is σ = 114508579020. Its totient is φ = 30522055680.

The previous prime is 61057676737. The next prime is 61057676749. The reversal of 61057676744 is 44767675016.

It is a happy number.

61057676744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 58933388644 + 2124288100 = 242762^2 + 46090^2 .

It is not an unprimeable number, because it can be changed into a prime (61057676749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809477 + ... + 881684.

Almost surely, 261057676744 is an apocalyptic number.

It is an amenable number.

61057676744 is a deficient number, since it is larger than the sum of its proper divisors (53450902276).

61057676744 is a wasteful number, since it uses less digits than its factorization.

61057676744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695680 (or 1695676 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 61057676744 in words is "sixty-one billion, fifty-seven million, six hundred seventy-six thousand, seven hundred forty-four".

Divisors: 1 2 4 8 4513 9026 18052 36104 1691161 3382322 6764644 13529288 7632209593 15264419186 30528838372 61057676744