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42252501 = 353265739
BaseRepresentation
bin1010000100101…
…1100011010101
32221111122112110
42201023203111
541304040001
64105341233
71022066064
oct241134325
987448473
1042252501
1121939a25
1212197819
1389a4ba5
14587c1db
153a993d6
hex284b8d5

42252501 has 8 divisors (see below), whose sum is σ = 57399840. Its totient is φ = 27636752.

The previous prime is 42252499. The next prime is 42252547. The reversal of 42252501 is 10525224.

It is a happy number.

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 42252501 - 21 = 42252499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42252601) 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, 132711 + ... + 133028.

It is an arithmetic number, because the mean of its divisors is an integer number (7174980).

Almost surely, 242252501 is an apocalyptic number.

It is an amenable number.

42252501 is a deficient number, since it is larger than the sum of its proper divisors (15147339).

42252501 is a wasteful number, since it uses less digits than its factorization.

42252501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265795.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 42252501 is about 6500.1923817684. The cubic root of 42252501 is about 348.2978606511.

Adding to 42252501 its reverse (10525224), we get a palindrome (52777725).

The spelling of 42252501 in words is "forty-two million, two hundred fifty-two thousand, five hundred one".

Divisors: 1 3 53 159 265739 797217 14084167 42252501