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12820238716 = 223901982141
BaseRepresentation
bin10111111000010010…
…10101000101111100
31020002110112121100011
423330021111011330
5202223440114331
65520050113004
7632461142155
oct137411250574
936073477304
1012820238716
11548976610a
12259957b764
13129408268c
1489893492c
155007943b1
hex2fc25517c

12820238716 has 12 divisors (see below), whose sum is σ = 22436265880. Its totient is φ = 6409877040.

The previous prime is 12820238707. The next prime is 12820238723. The reversal of 12820238716 is 61783202821.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 115006 + ... + 197146.

Almost surely, 212820238716 is an apocalyptic number.

It is an amenable number.

12820238716 is a deficient number, since it is larger than the sum of its proper divisors (9616027164).

12820238716 is a wasteful number, since it uses less digits than its factorization.

12820238716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121164 (or 121162 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 12820238716 in words is "twelve billion, eight hundred twenty million, two hundred thirty-eight thousand, seven hundred sixteen".

Divisors: 1 2 4 39019 78038 82141 156076 164282 328564 3205059679 6410119358 12820238716