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10256868 = 223431657
BaseRepresentation
bin100111001000…
…000111100100
3201022002210000
4213020013210
510111204433
61003501300
7153116256
oct47100744
921262700
1010256868
115876156
123527830
13218176b
14150dcd6
15d79113
hex9c81e4

10256868 has 30 divisors (see below), whose sum is σ = 26814326. Its totient is φ = 3418848.

The previous prime is 10256861. The next prime is 10256947. The reversal of 10256868 is 86865201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8714304 + 1542564 = 2952^2 + 1242^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (10256861) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15505 + ... + 16152.

Almost surely, 210256868 is an apocalyptic number.

10256868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10256868 is an abundant number, since it is smaller than the sum of its proper divisors (16557458).

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

10256868 is a wasteful number, since it uses less digits than its factorization.

10256868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31673 (or 31662 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 10256868 is about 3202.6345404994. The cubic root of 10256868 is about 217.2725803649.

The spelling of 10256868 in words is "ten million, two hundred fifty-six thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 31657 63314 94971 126628 189942 284913 379884 569826 854739 1139652 1709478 2564217 3418956 5128434 10256868