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42868005 = 352857867
BaseRepresentation
bin1010001110000…
…1110100100101
32222122220211220
42203201310211
541433234010
64130450553
71030241415
oct243416445
988586756
1042868005
112221a404
1212433a59
138b5c0ab
14599c645
153b6b970
hex28e1d25

42868005 has 8 divisors (see below), whose sum is σ = 68588832. Its totient is φ = 22862928.

The previous prime is 42867977. The next prime is 42868013. The reversal of 42868005 is 50086824.

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

It is not a de Polignac number, because 42868005 - 25 = 42867973 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428919 + ... + 1428948.

It is an arithmetic number, because the mean of its divisors is an integer number (8573604).

Almost surely, 242868005 is an apocalyptic number.

It is an amenable number.

42868005 is a deficient number, since it is larger than the sum of its proper divisors (25720827).

42868005 is a wasteful number, since it uses less digits than its factorization.

42868005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857875.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 42868005 is about 6547.3662643845. The cubic root of 42868005 is about 349.9809649512.

The spelling of 42868005 in words is "forty-two million, eight hundred sixty-eight thousand, five".

Divisors: 1 3 5 15 2857867 8573601 14289335 42868005