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42472697 = 233171839
BaseRepresentation
bin1010001000000…
…1010011111001
32221220211120212
42202001103321
541333111242
64114200505
71024004051
oct242012371
987824525
1042472697
1121a7a403
1212283135
138a51197
1458d8561
153ade782
hex28814f9

42472697 has 16 divisors (see below), whose sum is σ = 46448640. Its totient is φ = 38715600.

The previous prime is 42472667. The next prime is 42472709. The reversal of 42472697 is 79627424.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42472697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42472627) 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 15 ways as a sum of consecutive naturals, for example, 50204 + ... + 51042.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 242472697 is an apocalyptic number.

It is an amenable number.

42472697 is a deficient number, since it is larger than the sum of its proper divisors (3975943).

42472697 is a wasteful number, since it uses less digits than its factorization.

42472697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964.

The product of its digits is 169344, while the sum is 41.

The square root of 42472697 is about 6517.1080242697. The cubic root of 42472697 is about 348.9018560767.

The spelling of 42472697 in words is "forty-two million, four hundred seventy-two thousand, six hundred ninety-seven".

Divisors: 1 23 31 71 713 839 1633 2201 19297 26009 50623 59569 598207 1370087 1846639 42472697