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807138452 = 22227888919
BaseRepresentation
bin110000000110111…
…111010010010100
32002020202212210202
4300012333102110
53123111412302
6212031440032
726000364221
oct6006772224
92066685722
10807138452
1138467707a
121a6386018
13cb2b2123
14792a6948
154acd7202
hex301bf494

807138452 has 12 divisors (see below), whose sum is σ = 1418716320. Its totient is φ = 401790936.

The previous prime is 807138439. The next prime is 807138463. The reversal of 807138452 is 254831708.

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, 443552 + ... + 445367.

It is an arithmetic number, because the mean of its divisors is an integer number (118226360).

Almost surely, 2807138452 is an apocalyptic number.

It is an amenable number.

807138452 is a deficient number, since it is larger than the sum of its proper divisors (611577868).

807138452 is a wasteful number, since it uses less digits than its factorization.

807138452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889150 (or 889148 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 807138452 is about 28410.1821887858. The cubic root of 807138452 is about 931.0707411549.

The spelling of 807138452 in words is "eight hundred seven million, one hundred thirty-eight thousand, four hundred fifty-two".

Divisors: 1 2 4 227 454 908 888919 1777838 3555676 201784613 403569226 807138452