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10557930 = 235351931
BaseRepresentation
bin101000010001…
…100111101010
3201212101202110
4220101213222
510200323210
61014143150
7155512065
oct50214752
921771673
1010557930
115a61369
123651ab6
1322587c6
14158b8dc
15dd8420
hexa119ea

10557930 has 16 divisors (see below), whose sum is σ = 25339104. Its totient is φ = 2815440.

The previous prime is 10557923. The next prime is 10557931. The reversal of 10557930 is 3975501.

It is a happy number.

It is a super-2 number, since 2×105579302 = 222939771769800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 351931 = 10557930 / (1 + 0 + 5 + 5 + 7 + 9 + 3 + 0).

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (10557931) 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 7 ways as a sum of consecutive naturals, for example, 175936 + ... + 175995.

It is an arithmetic number, because the mean of its divisors is an integer number (1583694).

Almost surely, 210557930 is an apocalyptic number.

10557930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10557930 is an abundant number, since it is smaller than the sum of its proper divisors (14781174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10557930 is a wasteful number, since it uses less digits than its factorization.

10557930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351941.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 10557930 is about 3249.2968470117. The cubic root of 10557930 is about 219.3779258707.

The spelling of 10557930 in words is "ten million, five hundred fifty-seven thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 351931 703862 1055793 1759655 2111586 3519310 5278965 10557930