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61060431556 = 22192334931597
BaseRepresentation
bin111000110111011111…
…000011111011000100
312211121101222022101001
4320313133003323010
52000022432302211
644014544543044
74261064050615
oct706737037304
9184541868331
1061060431556
1123994026a83
12ba01021a84
1359b1365897
142d53651c0c
1518c58beac1
hexe377c3ec4

61060431556 has 24 divisors (see below), whose sum is σ = 117370169280. Its totient is φ = 27665824032.

The previous prime is 61060431529. The next prime is 61060431577. The reversal of 61060431556 is 65513406016.

It is a super-2 number, since 2×610604315562 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17464051 + ... + 17467546.

It is an arithmetic number, because the mean of its divisors is an integer number (4890423720).

Almost surely, 261060431556 is an apocalyptic number.

It is an amenable number.

61060431556 is a deficient number, since it is larger than the sum of its proper divisors (56309737724).

61060431556 is a wasteful number, since it uses less digits than its factorization.

61060431556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34931643 (or 34931641 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 61060431556 in words is "sixty-one billion, sixty million, four hundred thirty-one thousand, five hundred fifty-six".

Divisors: 1 2 4 19 23 38 46 76 92 437 874 1748 34931597 69863194 139726388 663700343 803426731 1327400686 1606853462 2654801372 3213706924 15265107889 30530215778 61060431556