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1312132755 = 35191457987
BaseRepresentation
bin100111000110101…
…1000111010010011
310101110000020202110
41032031120322103
510141401222010
6334111320403
744341641633
oct11615307223
93343006673
101312132755
1161373483a
12307520103
1317bac551b
14c639c6c3
157a2da120
hex4e358e93

1312132755 has 16 divisors (see below), whose sum is σ = 2110408704. Its totient is φ = 696138720.

The previous prime is 1312132747. The next prime is 1312132763. The reversal of 1312132755 is 5572312131.

1312132755 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1312132747) and next prime (1312132763).

It is not a de Polignac number, because 1312132755 - 23 = 1312132747 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226129 + ... + 231858.

It is an arithmetic number, because the mean of its divisors is an integer number (131900544).

Almost surely, 21312132755 is an apocalyptic number.

1312132755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1312132755 is a deficient number, since it is larger than the sum of its proper divisors (798275949).

1312132755 is a wasteful number, since it uses less digits than its factorization.

1312132755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458186.

The product of its digits is 6300, while the sum is 30.

The square root of 1312132755 is about 36223.3730483510. The cubic root of 1312132755 is about 1094.7776575727. Note that the first 3 decimals are identical.

Adding to 1312132755 its reverse (5572312131), we get a palindrome (6884444886).

The spelling of 1312132755 in words is "one billion, three hundred twelve million, one hundred thirty-two thousand, seven hundred fifty-five".

Divisors: 1 3 5 15 191 573 955 2865 457987 1373961 2289935 6869805 87475517 262426551 437377585 1312132755