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42472664 = 23131724023
BaseRepresentation
bin1010001000000…
…1010011011000
32221220211112122
42202001103120
541333111124
64114200412
71024004003
oct242012330
987824478
1042472664
1121a7a383
1212283108
138a51170
1458d853a
153ade75e
hex28814d8

42472664 has 32 divisors (see below), whose sum is σ = 90810720. Its totient is φ = 18448896.

The previous prime is 42472627. The next prime is 42472667. The reversal of 42472664 is 46627424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42472667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10244 + ... + 13779.

It is an arithmetic number, because the mean of its divisors is an integer number (2837835).

Almost surely, 242472664 is an apocalyptic number.

It is an amenable number.

42472664 is an abundant number, since it is smaller than the sum of its proper divisors (48338056).

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

42472664 is a wasteful number, since it uses less digits than its factorization.

42472664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24059 (or 24055 counting only the distinct ones).

The product of its digits is 64512, while the sum is 35.

The square root of 42472664 is about 6517.1054924713. The cubic root of 42472664 is about 348.9017657146.

The spelling of 42472664 in words is "forty-two million, four hundred seventy-two thousand, six hundred sixty-four".

Divisors: 1 2 4 8 13 17 26 34 52 68 104 136 221 442 884 1768 24023 48046 96092 192184 312299 408391 624598 816782 1249196 1633564 2498392 3267128 5309083 10618166 21236332 42472664