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212513315212 = 22115638578771
BaseRepresentation
bin1100010111101011000…
…1111101100110001100
3202022112102021221221101
43011322301331212030
511440211402041322
6241343253512444
721232164242362
oct3057261754614
9668472257841
10212513315212
1182143254120
123522a342724
131706991b5c3
14a3ddd5d632
1557dbcdd327
hex317ac7d98c

212513315212 has 24 divisors (see below), whose sum is σ = 406427902272. Its totient is φ = 96425374800.

The previous prime is 212513315207. The next prime is 212513315239.

212513315212 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4264614 + ... + 4314157.

It is an arithmetic number, because the mean of its divisors is an integer number (16934495928).

Almost surely, 2212513315212 is an apocalyptic number.

212513315212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212513315212 is a deficient number, since it is larger than the sum of its proper divisors (193914587060).

212513315212 is a wasteful number, since it uses less digits than its factorization.

212513315212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8579349 (or 8579347 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

It can be divided in two parts, 212513 and 315212, that added together give a palindrome (527725).

The spelling of 212513315212 in words is "two hundred twelve billion, five hundred thirteen million, three hundred fifteen thousand, two hundred twelve".

Divisors: 1 2 4 11 22 44 563 1126 2252 6193 12386 24772 8578771 17157542 34315084 94366481 188732962 377465924 4829848073 9659696146 19319392292 53128328803 106256657606 212513315212