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55610131 = 1922912781
BaseRepresentation
bin1101010000100…
…0101100010011
310212122021202111
43110020230103
5103214011011
65303530151
71243451443
oct324105423
9125567674
1055610131
1129432795
1216759957
13b6a0b05
147558123
154d37121
hex3508b13

55610131 has 8 divisors (see below), whose sum is σ = 58797200. Its totient is φ = 52449120.

The previous prime is 55610119. The next prime is 55610143. The reversal of 55610131 is 13101655.

It is an interprime number because it is at equal distance from previous prime (55610119) and next prime (55610143).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55610131 - 211 = 55608083 is a prime.

It is a super-2 number, since 2×556101312 = 6184973339674322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55610161) 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, 2040 + ... + 10741.

It is an arithmetic number, because the mean of its divisors is an integer number (7349650).

Almost surely, 255610131 is an apocalyptic number.

55610131 is a deficient number, since it is larger than the sum of its proper divisors (3187069).

55610131 is a wasteful number, since it uses less digits than its factorization.

55610131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13029.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 55610131 is about 7457.2200584400. The cubic root of 55610131 is about 381.6963198698.

Adding to 55610131 its reverse (13101655), we get a palindrome (68711786).

The spelling of 55610131 in words is "fifty-five million, six hundred ten thousand, one hundred thirty-one".

Divisors: 1 19 229 4351 12781 242839 2926849 55610131