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7657360745 = 51790086597
BaseRepresentation
bin1110010000110101…
…00000110101101001
3201202122200020012112
413020122200311221
5111140241020440
63303455452105
7360520330616
oct71032406551
921678606175
107657360745
11327a420511
121598527035
139505663b8
14528d9550d
152ec3b7965
hex1c86a0d69

7657360745 has 8 divisors (see below), whose sum is σ = 9729352584. Its totient is φ = 5765542144.

The previous prime is 7657360727. The next prime is 7657360757. The reversal of 7657360745 is 5470637567.

It can be written as a sum of positive squares in 4 ways, for example, as 859193344 + 6798167401 = 29312^2 + 82451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7657360745 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7657360693 and 7657360702.

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, 45043214 + ... + 45043383.

It is an arithmetic number, because the mean of its divisors is an integer number (1216169073).

Almost surely, 27657360745 is an apocalyptic number.

It is an amenable number.

7657360745 is a deficient number, since it is larger than the sum of its proper divisors (2071991839).

7657360745 is a wasteful number, since it uses less digits than its factorization.

7657360745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90086619.

The product of its (nonzero) digits is 3704400, while the sum is 50.

The square root of 7657360745 is about 87506.3468840975. The cubic root of 7657360745 is about 1971.0290984876.

The spelling of 7657360745 in words is "seven billion, six hundred fifty-seven million, three hundred sixty thousand, seven hundred forty-five".

Divisors: 1 5 17 85 90086597 450432985 1531472149 7657360745