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68044476 = 2235670373
BaseRepresentation
bin1000000111001…
…00011010111100
311202001000110210
410003210122330
5114404410401
610430232420
71454240253
oct403443274
9152030423
1068044476
1135455905
121a955710
1311135706
14907379a
155e914d6
hex40e46bc

68044476 has 12 divisors (see below), whose sum is σ = 158770472. Its totient is φ = 22681488.

The previous prime is 68044451. The next prime is 68044477. The reversal of 68044476 is 67444086.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×680444762 = 9260101428229152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68044477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2835175 + ... + 2835198.

Almost surely, 268044476 is an apocalyptic number.

It is an amenable number.

68044476 is an abundant number, since it is smaller than the sum of its proper divisors (90725996).

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

68044476 is a wasteful number, since it uses less digits than its factorization.

68044476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5670380 (or 5670378 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 68044476 is about 8248.9075640354. The cubic root of 68044476 is about 408.2544788821.

The spelling of 68044476 in words is "sixty-eight million, forty-four thousand, four hundred seventy-six".

Divisors: 1 2 3 4 6 12 5670373 11340746 17011119 22681492 34022238 68044476