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42880657 = 315326099
BaseRepresentation
bin1010001110010…
…0111010010001
32222200120012111
42203210322101
541434140112
64131025321
71030323331
oct243447221
988616174
1042880657
1122228966
121243b241
138b64a91
1459a30c1
153b705a7
hex28e4e91

42880657 has 8 divisors (see below), whose sum is σ = 45100800. Its totient is φ = 40712880.

The previous prime is 42880631. The next prime is 42880667. The reversal of 42880657 is 75608824.

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 42880657 - 211 = 42878609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42880627) 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, 11407 + ... + 14692.

It is an arithmetic number, because the mean of its divisors is an integer number (5637600).

Almost surely, 242880657 is an apocalyptic number.

It is an amenable number.

42880657 is a deficient number, since it is larger than the sum of its proper divisors (2220143).

42880657 is a wasteful number, since it uses less digits than its factorization.

42880657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26183.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 42880657 is about 6548.3323831339. The cubic root of 42880657 is about 350.0153925203.

The spelling of 42880657 in words is "forty-two million, eight hundred eighty thousand, six hundred fifty-seven".

Divisors: 1 31 53 1643 26099 809069 1383247 42880657