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12100220013 = 372014928597
BaseRepresentation
bin10110100010011101…
…01011010001101101
31011020021200212100210
423101032223101231
5144240124020023
65320405413033
7605566113240
oct132116532155
934207625323
1012100220013
11514a293432
12241840a179
1311aab544cb
1482b069257
154ac46a593
hex2d13ab46d

12100220013 has 16 divisors (see below), whose sum is σ = 18439990400. Its totient is φ = 6913826496.

The previous prime is 12100219981. The next prime is 12100220017. The reversal of 12100220013 is 31002200121.

It is not a de Polignac number, because 12100220013 - 25 = 12100219981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100220017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408831 + ... + 437427.

It is an arithmetic number, because the mean of its divisors is an integer number (1152499400).

Almost surely, 212100220013 is an apocalyptic number.

It is an amenable number.

12100220013 is a deficient number, since it is larger than the sum of its proper divisors (6339770387).

12100220013 is a wasteful number, since it uses less digits than its factorization.

12100220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48756.

The product of its (nonzero) digits is 24, while the sum is 12.

Subtracting from 12100220013 its sum of digits (12), we obtain a square (12100220001 = 1100012).

Adding to 12100220013 its reverse (31002200121), we get a palindrome (43102420134).

The spelling of 12100220013 in words is "twelve billion, one hundred million, two hundred twenty thousand, thirteen".

Divisors: 1 3 7 21 20149 28597 60447 85791 141043 200179 423129 600537 576200953 1728602859 4033406671 12100220013