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61347605386 = 2617131937691
BaseRepresentation
bin111001001000100110…
…100010101110001010
312212100102100020210211
4321020212202232022
52001114441333021
644103244031334
74301152020244
oct711046425612
9185312306724
1061347605386
112402113aa21
12ba8123254a
135a289c2622
142d7d847094
1518e0be83e1
hexe489a2b8a

61347605386 has 16 divisors (see below), whose sum is σ = 92242877760. Its totient is φ = 30600058720.

The previous prime is 61347605383. The next prime is 61347605399. The reversal of 61347605386 is 68350674316.

It is not an unprimeable number, because it can be changed into a prime (61347605383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1608801 + ... + 1646491.

It is an arithmetic number, because the mean of its divisors is an integer number (5765179860).

Almost surely, 261347605386 is an apocalyptic number.

61347605386 is a deficient number, since it is larger than the sum of its proper divisors (30895272374).

61347605386 is a wasteful number, since it uses less digits than its factorization.

61347605386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39629.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 61347605386 in words is "sixty-one billion, three hundred forty-seven million, six hundred five thousand, three hundred eighty-six".

Divisors: 1 2 617 1234 1319 2638 37691 75382 813823 1627646 23255347 46510694 49714429 99428858 30673802693 61347605386