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130235155551 = 32171163731909
BaseRepresentation
bin111100101001010011…
…1101100010001011111
3110110011022102101101200
41321102213230101133
54113210144434201
6135455035210543
712260230362024
oct1712247542137
9413138371350
10130235155551
1150261393a66
12212a75a6a53
13c38681a627
1464367dd54b
1535c3814386
hex1e529ec45f

130235155551 has 24 divisors (see below), whose sum is σ = 199354718160. Its totient is φ = 81645801216.

The previous prime is 130235155529. The next prime is 130235155637. The reversal of 130235155551 is 155551532031.

130235155551 is a `hidden beast` number, since 1 + 3 + 0 + 2 + 3 + 51 + 55 + 551 = 666.

It is not a de Polignac number, because 130235155551 - 218 = 130234893407 is a prime.

It is a super-2 number, since 2×1302351555512 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130235155051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188016 + ... + 543893.

It is an arithmetic number, because the mean of its divisors is an integer number (8306446590).

Almost surely, 2130235155551 is an apocalyptic number.

130235155551 is a deficient number, since it is larger than the sum of its proper divisors (69119562609).

130235155551 is a wasteful number, since it uses less digits than its factorization.

130235155551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733095 (or 733092 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

Adding to 130235155551 its reverse (155551532031), we get a palindrome (285786687582).

The spelling of 130235155551 in words is "one hundred thirty billion, two hundred thirty-five million, one hundred fifty-five thousand, five hundred fifty-one".

Divisors: 1 3 9 17 51 153 1163 3489 10467 19771 59313 177939 731909 2195727 6587181 12442453 37327359 111982077 851210167 2553630501 7660891503 14470572839 43411718517 130235155551