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490872151 = 7211910709
BaseRepresentation
bin11101010000100…
…001110101010111
31021012122220000001
4131100201311113
52001130402101
6120413032131
715110226100
oct3520416527
91235586001
10490872151
112320a2570
12118485647
137a90a4c3
144929b3a7
152d163901
hex1d421d57

490872151 has 12 divisors (see below), whose sum is σ = 622925640. Its totient is φ = 382497360.

The previous prime is 490872149. The next prime is 490872157. The reversal of 490872151 is 151278094.

It is not a de Polignac number, because 490872151 - 21 = 490872149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 490872151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490872157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 454816 + ... + 455893.

It is an arithmetic number, because the mean of its divisors is an integer number (51910470).

Almost surely, 2490872151 is an apocalyptic number.

490872151 is a deficient number, since it is larger than the sum of its proper divisors (132053489).

490872151 is a wasteful number, since it uses less digits than its factorization.

490872151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910734 (or 910727 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 490872151 is about 22155.6347460415. The cubic root of 490872151 is about 788.8409810805.

The spelling of 490872151 in words is "four hundred ninety million, eight hundred seventy-two thousand, one hundred fifty-one".

Divisors: 1 7 11 49 77 539 910709 6374963 10017799 44624741 70124593 490872151