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130123405553 = 457284733929
BaseRepresentation
bin111100100101111110…
…1011001100011110001
3110102212112010220012212
41321023331121203301
54112443042434203
6135440004101505
712254402461211
oct1711375314361
9412775126185
10130123405553
11502042a7599
1221276094895
13c36962187b
146425a30241
1535b8add1d8
hex1e4bf598f1

130123405553 has 4 divisors (see below), whose sum is σ = 130408139940. Its totient is φ = 129838671168.

The previous prime is 130123405547. The next prime is 130123405561. The reversal of 130123405553 is 355504321031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78844708849 + 51278696704 = 280793^2 + 226448^2 .

It is a cyclic number.

It is not a de Polignac number, because 130123405553 - 210 = 130123404529 is a prime.

It is a super-2 number, since 2×1301234055532 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130123405543) 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, 142366508 + ... + 142367421.

It is an arithmetic number, because the mean of its divisors is an integer number (32602034985).

Almost surely, 2130123405553 is an apocalyptic number.

It is an amenable number.

130123405553 is a deficient number, since it is larger than the sum of its proper divisors (284734387).

130123405553 is an equidigital number, since it uses as much as digits as its factorization.

130123405553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284734386.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 130123405553 its reverse (355504321031), we get a palindrome (485627726584).

The spelling of 130123405553 in words is "one hundred thirty billion, one hundred twenty-three million, four hundred five thousand, five hundred fifty-three".

Divisors: 1 457 284733929 130123405553