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42712715 = 522973719
BaseRepresentation
bin1010001011101…
…1111010001011
32222101000211102
42202323322023
541413301330
64123252015
71026023603
oct242737213
988330742
1042712715
1122123771
121237a00b
138b064c6
14595bc03
153b3a945
hex28bbe8b

42712715 has 8 divisors (see below), whose sum is σ = 51291360. Its totient is φ = 34146112.

The previous prime is 42712711. The next prime is 42712723. The reversal of 42712715 is 51721724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42712715 - 22 = 42712711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42712711) 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, 9626 + ... + 13344.

It is an arithmetic number, because the mean of its divisors is an integer number (6411420).

Almost surely, 242712715 is an apocalyptic number.

42712715 is a deficient number, since it is larger than the sum of its proper divisors (8578645).

42712715 is a wasteful number, since it uses less digits than its factorization.

42712715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021.

The product of its digits is 3920, while the sum is 29.

The square root of 42712715 is about 6535.4965381369. The cubic root of 42712715 is about 349.5578498363.

Subtracting 42712715 from its reverse (51721724), we obtain a palindrome (9009009).

The spelling of 42712715 in words is "forty-two million, seven hundred twelve thousand, seven hundred fifteen".

Divisors: 1 5 2297 3719 11485 18595 8542543 42712715