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530866990 = 25172183691
BaseRepresentation
bin11111101001000…
…110001100101110
31100222220211121101
4133221012030232
52041400220430
6124402153314
716104203113
oct3751061456
91328824541
10530866990
1125272a255
1212995283a
1385ca18a4
145070c90a
1531913dca
hex1fa4632e

530866990 has 24 divisors (see below), whose sum is σ = 1015081992. Its totient is φ = 199854720.

The previous prime is 530866961. The next prime is 530866991. The reversal of 530866990 is 99668035.

It is a super-2 number, since 2×5308669902 = 563639522143320200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 530866990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530866991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88956 + ... + 94735.

It is an arithmetic number, because the mean of its divisors is an integer number (42295083).

Almost surely, 2530866990 is an apocalyptic number.

530866990 is a deficient number, since it is larger than the sum of its proper divisors (484215002).

530866990 is a wasteful number, since it uses less digits than its factorization.

530866990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183732 (or 183715 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 530866990 is about 23040.5509916755. The cubic root of 530866990 is about 809.7082676487.

The spelling of 530866990 in words is "five hundred thirty million, eight hundred sixty-six thousand, nine hundred ninety".

Divisors: 1 2 5 10 17 34 85 170 289 578 1445 2890 183691 367382 918455 1836910 3122747 6245494 15613735 31227470 53086699 106173398 265433495 530866990