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130550053 = 157831529
BaseRepresentation
bin1111100100000…
…00100100100101
3100002122122000011
413302000210211
5231410100203
620542050221
73143441254
oct762004445
9302578004
10130550053
1167768207
1237879971
132107bc6a
14134a479b
15b6db76d
hex7c80925

130550053 has 4 divisors (see below), whose sum is σ = 131381740. Its totient is φ = 129718368.

The previous prime is 130550039. The next prime is 130550087. The reversal of 130550053 is 350055031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350055031 = 1918423949.

It can be written as a sum of positive squares in 2 ways, for example, as 55086084 + 75463969 = 7422^2 + 8687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130550053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130550033) 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, 415608 + ... + 415921.

It is an arithmetic number, because the mean of its divisors is an integer number (32845435).

Almost surely, 2130550053 is an apocalyptic number.

It is an amenable number.

130550053 is a deficient number, since it is larger than the sum of its proper divisors (831687).

130550053 is an equidigital number, since it uses as much as digits as its factorization.

130550053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831686.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 130550053 is about 11425.8502090654. The cubic root of 130550053 is about 507.2931726954.

The spelling of 130550053 in words is "one hundred thirty million, five hundred fifty thousand, fifty-three".

Divisors: 1 157 831529 130550053