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10256897386 = 25128448693
BaseRepresentation
bin10011000110101101…
…11101010101101010
3222110211011101002101
421203112331111222
5132001231204021
64413440524014
7512114121631
oct114326752552
928424141071
1010256897386
1143938298aa
121ba302060a
13c75ca6468
146d4316518
15400705a91
hex2635bd56a

10256897386 has 4 divisors (see below), whose sum is σ = 15385346082. Its totient is φ = 5128448692.

The previous prime is 10256897369. The next prime is 10256897401. The reversal of 10256897386 is 68379865201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68379865201 = 671020595003.

It can be written as a sum of positive squares in only one way, i.e., 6198570361 + 4058327025 = 78731^2 + 63705^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564224345 + ... + 2564224348.

Almost surely, 210256897386 is an apocalyptic number.

10256897386 is a deficient number, since it is larger than the sum of its proper divisors (5128448696).

10256897386 is an equidigital number, since it uses as much as digits as its factorization.

10256897386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128448695.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 10256897386 in words is "ten billion, two hundred fifty-six million, eight hundred ninety-seven thousand, three hundred eighty-six".

Divisors: 1 2 5128448693 10256897386