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13131130232312 = 234633545121553
BaseRepresentation
bin1011111100010101010001…
…0110100101110111111000
31201111022202001011112011022
42333011110112211313320
53210120023314413222
643532205152322012
72523456435235601
oct277052426456770
951438661145138
1013131130232312
114202976763114
121580a98b43308
1374334ca67561
1433579b65cda8
1517b886854042
hexbf1545a5df8

13131130232312 has 16 divisors (see below), whose sum is σ = 24674046015840. Its totient is φ = 6551384628096.

The previous prime is 13131130232251. The next prime is 13131130232323. The reversal of 13131130232312 is 21323203113131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1772557073 + ... + 1772564480.

It is an arithmetic number, because the mean of its divisors is an integer number (1542127875990).

Almost surely, 213131130232312 is an apocalyptic number.

It is an amenable number.

13131130232312 is a deficient number, since it is larger than the sum of its proper divisors (11542915783528).

13131130232312 is a wasteful number, since it uses less digits than its factorization.

13131130232312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545122022 (or 3545122018 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 13131130232312 its reverse (21323203113131), we get a palindrome (34454333345443).

The spelling of 13131130232312 in words is "thirteen trillion, one hundred thirty-one billion, one hundred thirty million, two hundred thirty-two thousand, three hundred twelve".

Divisors: 1 2 4 8 463 926 1852 3704 3545121553 7090243106 14180486212 28360972424 1641391279039 3282782558078 6565565116156 13131130232312