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10785055540 = 225777036111
BaseRepresentation
bin10100000101101011…
…01110001100110100
31000211121222120212111
422002311232030310
5134041433234130
64542105100404
7531156313420
oct120265561464
930747876774
1010785055540
114634978946
12210ba87704
13102b53a08c
1474451bb80
15431c8202a
hex282d6e334

10785055540 has 24 divisors (see below), whose sum is σ = 25884133632. Its totient is φ = 3697733280.

The previous prime is 10785055513. The next prime is 10785055573. The reversal of 10785055540 is 4555058701.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 10785055493 and 10785055502.

It is a congruent number.

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, 38517916 + ... + 38518195.

It is an arithmetic number, because the mean of its divisors is an integer number (1078505568).

Almost surely, 210785055540 is an apocalyptic number.

10785055540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10785055540 is an abundant number, since it is smaller than the sum of its proper divisors (15099078092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10785055540 is a wasteful number, since it uses less digits than its factorization.

10785055540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77036127 (or 77036125 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 40.

The spelling of 10785055540 in words is "ten billion, seven hundred eighty-five million, fifty-five thousand, five hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 77036111 154072222 308144444 385180555 539252777 770361110 1078505554 1540722220 2157011108 2696263885 5392527770 10785055540