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10556149 = 23458963
BaseRepresentation
bin101000010001…
…001011110101
3201212022022111
4220101023311
510200244044
61014131021
7155503642
oct50211365
921768274
1010556149
115a5aa9a
123650a71
132257a56
14158adc9
15dd7b34
hexa112f5

10556149 has 4 divisors (see below), whose sum is σ = 11015136. Its totient is φ = 10097164.

The previous prime is 10556141. The next prime is 10556171. The reversal of 10556149 is 94165501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10556149 - 23 = 10556141 is a prime.

It is a super-2 number, since 2×105561492 = 222864563420402, 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 10556149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10556141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229459 + ... + 229504.

It is an arithmetic number, because the mean of its divisors is an integer number (2753784).

Almost surely, 210556149 is an apocalyptic number.

It is an amenable number.

10556149 is a deficient number, since it is larger than the sum of its proper divisors (458987).

10556149 is an equidigital number, since it uses as much as digits as its factorization.

10556149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458986.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 10556149 is about 3249.0227761590. The cubic root of 10556149 is about 219.3655896754.

The spelling of 10556149 in words is "ten million, five hundred fifty-six thousand, one hundred forty-nine".

Divisors: 1 23 458963 10556149