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490157269 = 7197394987
BaseRepresentation
bin11101001101110…
…011010011010101
31021011022120100221
4131031303103111
52000440013034
6120345434341
715101160640
oct3515632325
91234276327
10490157269
11231754458
1211819b9b1
137a719cb4
1449152a57
152d071bb4
hex1d3734d5

490157269 has 16 divisors (see below), whose sum is σ = 590579200. Its totient is φ = 397404144.

The previous prime is 490157251. The next prime is 490157273. The reversal of 490157269 is 962751094.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 490157269 - 25 = 490157237 is a prime.

It is a super-2 number, since 2×4901572692 = 480508296707076722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490157069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95794 + ... + 100780.

It is an arithmetic number, because the mean of its divisors is an integer number (36911200).

Almost surely, 2490157269 is an apocalyptic number.

It is an amenable number.

490157269 is a deficient number, since it is larger than the sum of its proper divisors (100421931).

490157269 is a wasteful number, since it uses less digits than its factorization.

490157269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5752.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 490157269 is about 22139.4956807963. The cubic root of 490157269 is about 788.4578519922.

The spelling of 490157269 in words is "four hundred ninety million, one hundred fifty-seven thousand, two hundred sixty-nine".

Divisors: 1 7 19 133 739 4987 5173 14041 34909 94753 98287 663271 3685393 25797751 70022467 490157269