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490381972 = 22751163243
BaseRepresentation
bin11101001110101…
…010001010010100
31021011201222121021
4131032222022110
52001014210342
6120354330524
715103115023
oct3516521224
91234658537
10490381972
11231898263
12118289a44
137a798362
14491b08ba
152d0b8567
hex1d3aa294

490381972 has 12 divisors (see below), whose sum is σ = 859316416. Its totient is φ = 244863000.

The previous prime is 490381961. The next prime is 490382003. The reversal of 490381972 is 279183094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78618 + ... + 84625.

Almost surely, 2490381972 is an apocalyptic number.

It is an amenable number.

490381972 is a deficient number, since it is larger than the sum of its proper divisors (368934444).

490381972 is a wasteful number, since it uses less digits than its factorization.

490381972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163998 (or 163996 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 490381972 is about 22144.5698084203. The cubic root of 490381972 is about 788.5783179390.

The spelling of 490381972 in words is "four hundred ninety million, three hundred eighty-one thousand, nine hundred seventy-two".

Divisors: 1 2 4 751 1502 3004 163243 326486 652972 122595493 245190986 490381972