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20344012310 = 2519509210361
BaseRepresentation
bin10010111100100110…
…001111111000010110
31221111210211220102102
4102330212033320112
5313131031343220
613202414442102
71320100152146
oct227446177026
957453756372
1020344012310
11869a734616
123b39203332
131bc2a4560b
14dadc74926
157e1070775
hex4bc98fe16

20344012310 has 32 divisors (see below), whose sum is σ = 38622463200. Its totient is φ = 7694127360.

The previous prime is 20344012307. The next prime is 20344012321. The reversal of 20344012310 is 1321044302.

It is a super-2 number, since 2×203440123102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8471 + ... + 201890.

It is an arithmetic number, because the mean of its divisors is an integer number (1206951975).

Almost surely, 220344012310 is an apocalyptic number.

20344012310 is a deficient number, since it is larger than the sum of its proper divisors (18278450890).

20344012310 is a wasteful number, since it uses less digits than its factorization.

20344012310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210896.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20344012310 its reverse (1321044302), we get a palindrome (21665056612).

The spelling of 20344012310 in words is "twenty billion, three hundred forty-four million, twelve thousand, three hundred ten".

Divisors: 1 2 5 10 19 38 95 190 509 1018 2545 5090 9671 19342 48355 96710 210361 420722 1051805 2103610 3996859 7993718 19984295 39968590 107073749 214147498 535368745 1070737490 2034401231 4068802462 10172006155 20344012310