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10257778075 = 52661620743
BaseRepresentation
bin10011000110110100…
…10100010110011011
3222110212211010011111
421203122110112123
5132001442344300
64413511441151
7512124450346
oct114332242633
928425733144
1010257778075
114394280546
121ba33861b7
13c7622428c
146d44a545d
1540082b9ba
hex26369459b

10257778075 has 12 divisors (see below), whose sum is σ = 12738908368. Its totient is φ = 8193794400.

The previous prime is 10257778057. The next prime is 10257778079. The reversal of 10257778075 is 57087775201.

10257778075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10257778075 - 221 = 10255680923 is a prime.

It is a super-2 number, since 2×102577780752 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10257778079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293847 + ... + 326896.

Almost surely, 210257778075 is an apocalyptic number.

10257778075 is a deficient number, since it is larger than the sum of its proper divisors (2481130293).

10257778075 is an equidigital number, since it uses as much as digits as its factorization.

10257778075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621414 (or 621409 counting only the distinct ones).

The product of its (nonzero) digits is 960400, while the sum is 49.

The spelling of 10257778075 in words is "ten billion, two hundred fifty-seven million, seven hundred seventy-eight thousand, seventy-five".

Divisors: 1 5 25 661 3305 16525 620743 3103715 15518575 410311123 2051555615 10257778075