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490252679 = 7109642533
BaseRepresentation
bin11101001110001…
…010100110000111
31021011111102020122
4131032022212013
52001001041204
6120351452155
715102036050
oct3516124607
91234442218
10490252679
1123180a104
1211822705b
137a751557
1449179727
152d0900be
hex1d38a987

490252679 has 8 divisors (see below), whose sum is σ = 565429920. Its totient is φ = 416360736.

The previous prime is 490252667. The next prime is 490252699. The reversal of 490252679 is 976252094.

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 490252679 - 24 = 490252663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490252699) 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, 320504 + ... + 322029.

It is an arithmetic number, because the mean of its divisors is an integer number (70678740).

Almost surely, 2490252679 is an apocalyptic number.

490252679 is a deficient number, since it is larger than the sum of its proper divisors (75177241).

490252679 is a wasteful number, since it uses less digits than its factorization.

490252679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642649.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 490252679 is about 22141.6503224127. The cubic root of 490252679 is about 788.5090069228.

The spelling of 490252679 in words is "four hundred ninety million, two hundred fifty-two thousand, six hundred seventy-nine".

Divisors: 1 7 109 763 642533 4497731 70036097 490252679