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10538149 = 53198833
BaseRepresentation
bin101000001100…
…110010100101
3201211101121211
4220030302211
510144210044
61013511421
7155400316
oct50146245
921741554
1010538149
115a48516
123642571
13224c7bb
14158460d
15dd2634
hexa0cca5

10538149 has 4 divisors (see below), whose sum is σ = 10737036. Its totient is φ = 10339264.

The previous prime is 10538131. The next prime is 10538153. The reversal of 10538149 is 94183501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94183501 = 274134361.

It can be written as a sum of positive squares in 2 ways, for example, as 3150625 + 7387524 = 1775^2 + 2718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10538149 is a prime.

It is a super-2 number, since 2×105381492 = 222105168692402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10538149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10538119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99364 + ... + 99469.

It is an arithmetic number, because the mean of its divisors is an integer number (2684259).

Almost surely, 210538149 is an apocalyptic number.

It is an amenable number.

10538149 is a deficient number, since it is larger than the sum of its proper divisors (198887).

10538149 is an equidigital number, since it uses as much as digits as its factorization.

10538149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198886.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 10538149 is about 3246.2515306119. The cubic root of 10538149 is about 219.2408337291.

The spelling of 10538149 in words is "ten million, five hundred thirty-eight thousand, one hundred forty-nine".

Divisors: 1 53 198833 10538149