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42456501 = 333742499
BaseRepresentation
bin1010000111110…
…1010110110101
32221220000101000
42201331112311
541332102001
64113553513
71023605613
oct241752665
987800330
1042456501
1121a6921a
1212275899
138a469b9
1458d26b3
153ad9a86
hex287d5b5

42456501 has 16 divisors (see below), whose sum is σ = 64600000. Its totient is φ = 27538704.

The previous prime is 42456487. The next prime is 42456503. The reversal of 42456501 is 10565424.

42456501 is a `hidden beast` number, since 4 + 2 + 4 + 5 + 650 + 1 = 666.

It is not a de Polignac number, because 42456501 - 29 = 42455989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42456503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20251 + ... + 22248.

It is an arithmetic number, because the mean of its divisors is an integer number (4037500).

Almost surely, 242456501 is an apocalyptic number.

It is an amenable number.

42456501 is a deficient number, since it is larger than the sum of its proper divisors (22143499).

42456501 is a wasteful number, since it uses less digits than its factorization.

42456501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42545 (or 42539 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 42456501 is about 6515.8653301001. The cubic root of 42456501 is about 348.8575018344.

The spelling of 42456501 in words is "forty-two million, four hundred fifty-six thousand, five hundred one".

Divisors: 1 3 9 27 37 111 333 999 42499 127497 382491 1147473 1572463 4717389 14152167 42456501