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490900236 = 223181226013
BaseRepresentation
bin11101010000101…
…000101100001100
31021012201022112020
4131100220230030
52001132301421
6120413410140
715110404011
oct3520505414
91235638466
10490900236
11232111682
12118499950
137a91a218
14492a7708
152d16bdc6
hex1d428b0c

490900236 has 24 divisors (see below), whose sum is σ = 1151767344. Its totient is φ = 162728640.

The previous prime is 490900217. The next prime is 490900273. The reversal of 490900236 is 632009094.

It is a junction number, because it is equal to n+sod(n) for n = 490900197 and 490900206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110835 + ... + 115178.

It is an arithmetic number, because the mean of its divisors is an integer number (47990306).

Almost surely, 2490900236 is an apocalyptic number.

It is an amenable number.

490900236 is an abundant number, since it is smaller than the sum of its proper divisors (660867108).

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

490900236 is a wasteful number, since it uses less digits than its factorization.

490900236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226201 (or 226199 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 490900236 is about 22156.2685486523. The cubic root of 490900236 is about 788.8560251719.

The spelling of 490900236 in words is "four hundred ninety million, nine hundred thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 12 181 362 543 724 1086 2172 226013 452026 678039 904052 1356078 2712156 40908353 81816706 122725059 163633412 245450118 490900236