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65026910061 = 3233732142073
BaseRepresentation
bin111100100011111001…
…111110011101101101
320012211211121021222100
4330203321332131231
52031133342110221
645512320205313
74461266421111
oct744371763555
9205754537870
1065026910061
1125639aa4a93
1210729469839
13619404b499
14320c35b741
151a58c22926
hexf23e7e76d

65026910061 has 12 divisors (see below), whose sum is σ = 93955649788. Its totient is φ = 43338400704.

The previous prime is 65026910027. The next prime is 65026910087. The reversal of 65026910061 is 16001962056.

65026910061 is a `hidden beast` number, since 6 + 502 + 6 + 91 + 0 + 0 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62517501225 + 2509408836 = 250035^2 + 50094^2 .

It is a de Polignac number, because none of the positive numbers 2k-65026910061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65026909998 and 65026910025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65026912061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1040680 + ... + 1101393.

Almost surely, 265026910061 is an apocalyptic number.

It is an amenable number.

65026910061 is a deficient number, since it is larger than the sum of its proper divisors (28928739727).

65026910061 is a wasteful number, since it uses less digits than its factorization.

65026910061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145452 (or 2145449 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 65026910061 in words is "sixty-five billion, twenty-six million, nine hundred ten thousand, sixty-one".

Divisors: 1 3 9 3373 10119 30357 2142073 6426219 19278657 7225212229 21675636687 65026910061