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68472408 = 2332853017
BaseRepresentation
bin1000001010011…
…00111001011000
311202211202111010
410011030321120
5120012104113
610443333520
71461002004
oct405147130
9152752433
1068472408
1135718374
121ab212a0
1311255424
149145704
1560281c3
hex414ce58

68472408 has 16 divisors (see below), whose sum is σ = 171181080. Its totient is φ = 22824128.

The previous prime is 68472407. The next prime is 68472421. The reversal of 68472408 is 80427486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68472401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426485 + ... + 1426532.

Almost surely, 268472408 is an apocalyptic number.

It is an amenable number.

68472408 is an abundant number, since it is smaller than the sum of its proper divisors (102708672).

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

68472408 is a wasteful number, since it uses less digits than its factorization.

68472408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853026 (or 2853022 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 68472408 is about 8274.8056170523. The cubic root of 68472408 is about 409.1085290548.

The spelling of 68472408 in words is "sixty-eight million, four hundred seventy-two thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 24 2853017 5706034 8559051 11412068 17118102 22824136 34236204 68472408