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495449540 = 225731372477
BaseRepresentation
bin11101100001111…
…111010111000100
31021112021102222222
4131201333113010
52003313341130
6121055111512
715164152205
oct3541772704
91245242888
10495449540
11234739633
12119b12598
137b850b11
1449b2d5ac
152d769ce5
hex1d87f5c4

495449540 has 48 divisors (see below), whose sum is σ = 1062824112. Its totient is φ = 193959936.

The previous prime is 495449531. The next prime is 495449557. The reversal of 495449540 is 45944594.

It can be written as a sum of positive squares in 8 ways, for example, as 30976 + 495418564 = 176^2 + 22258^2 .

It is a junction number, because it is equal to n+sod(n) for n = 495449491 and 495449500.

It is an unprimeable number.

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, 198782 + ... + 201258.

It is an arithmetic number, because the mean of its divisors is an integer number (22142169).

Almost surely, 2495449540 is an apocalyptic number.

It is an amenable number.

495449540 is an abundant number, since it is smaller than the sum of its proper divisors (567374572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

495449540 is a wasteful number, since it uses less digits than its factorization.

495449540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696 (or 2694 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 495449540 is about 22258.6958288216. The cubic root of 495449540 is about 791.2853827599.

The spelling of 495449540 in words is "four hundred ninety-five million, four hundred forty-nine thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 73 137 146 274 292 365 548 685 730 1370 1460 2477 2740 4954 9908 10001 12385 20002 24770 40004 49540 50005 100010 180821 200020 339349 361642 678698 723284 904105 1357396 1696745 1808210 3393490 3616420 6786980 24772477 49544954 99089908 123862385 247724770 495449540