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10538530 = 257114843
BaseRepresentation
bin101000001100…
…111000100010
3201211102010221
4220030320202
510144213110
61013513254
7155401402
oct50147042
921742127
1010538530
115a48832
12364282a
13224ca22
141584802
15dd27da
hexa0ce22

10538530 has 16 divisors (see below), whose sum is σ = 19237824. Its totient is φ = 4155760.

The previous prime is 10538519. The next prime is 10538533. The reversal of 10538530 is 3583501.

It is a happy number.

It is a super-2 number, since 2×105385302 = 222121229121800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10538495 and 10538504.

It is not an unprimeable number, because it can be changed into a prime (10538533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6712 + ... + 8131.

It is an arithmetic number, because the mean of its divisors is an integer number (1202364).

Almost surely, 210538530 is an apocalyptic number.

10538530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10538530 is a deficient number, since it is larger than the sum of its proper divisors (8699294).

10538530 is a wasteful number, since it uses less digits than its factorization.

10538530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14921.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 10538530 is about 3246.3102131497. The cubic root of 10538530 is about 219.2434758677.

The spelling of 10538530 in words is "ten million, five hundred thirty-eight thousand, five hundred thirty".

Divisors: 1 2 5 10 71 142 355 710 14843 29686 74215 148430 1053853 2107706 5269265 10538530