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23131232302 = 2101723715823
BaseRepresentation
bin10101100010101110…
…101001100000101110
32012201001111100110111
4111202232221200232
5334333043413202
614343142330234
71446133142023
oct254256514056
965631440414
1023131232302
11989aa83212
12459672997a
132248319809
1411960cd54a
15905ad36d7
hex562ba982e

23131232302 has 16 divisors (see below), whose sum is σ = 35047438272. Its totient is φ = 11448799200.

The previous prime is 23131232281. The next prime is 23131232309. The reversal of 23131232302 is 20323213132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131232309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1453963 + ... + 1469785.

It is an arithmetic number, because the mean of its divisors is an integer number (2190464892).

Almost surely, 223131232302 is an apocalyptic number.

23131232302 is a deficient number, since it is larger than the sum of its proper divisors (11916205970).

23131232302 is a wasteful number, since it uses less digits than its factorization.

23131232302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23163.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23131232302 its reverse (20323213132), we get a palindrome (43454445434).

The spelling of 23131232302 in words is "twenty-three billion, one hundred thirty-one million, two hundred thirty-two thousand, three hundred two".

Divisors: 1 2 101 202 7237 14474 15823 31646 730937 1461874 1598123 3196246 114511051 229022102 11565616151 23131232302