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68472470 = 2511622477
BaseRepresentation
bin1000001010011…
…00111010010110
311202211202120102
410011030322112
5120012104340
610443334102
71461002123
oct405147226
9152752512
1068472470
1135718420
121ab21332
1311255471
14914574a
156028215
hex414ce96

68472470 has 16 divisors (see below), whose sum is σ = 134455248. Its totient is φ = 24899040.

The previous prime is 68472421. The next prime is 68472487. The reversal of 68472470 is 7427486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311129 + ... + 311348.

It is an arithmetic number, because the mean of its divisors is an integer number (8403453).

Almost surely, 268472470 is an apocalyptic number.

68472470 is a deficient number, since it is larger than the sum of its proper divisors (65982778).

68472470 is a wasteful number, since it uses less digits than its factorization.

68472470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622495.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 68472470 is about 8274.8093633630. The cubic root of 68472470 is about 409.1086525338.

The spelling of 68472470 in words is "sixty-eight million, four hundred seventy-two thousand, four hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 622477 1244954 3112385 6224770 6847247 13694494 34236235 68472470