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12247354384 = 241419753917
BaseRepresentation
bin10110110011111111…
…11100110000010000
31011121112120001202221
423121333330300100
5200040310320014
65343143150424
7612333536356
oct133177746020
934545501687
1012247354384
115215348691
122459745414
13120248bc75
148428097d6
154ba330b24
hex2d9ffcc10

12247354384 has 20 divisors (see below), whose sum is σ = 23731360684. Its totient is φ = 6123132288.

The previous prime is 12247354331. The next prime is 12247354391. The reversal of 12247354384 is 48345374221.

It can be written as a sum of positive squares in 2 ways, for example, as 7259040000 + 4988314384 = 85200^2 + 70628^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12247354384.

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 3 ways as a sum of consecutive naturals, for example, 200194 + ... + 254110.

Almost surely, 212247354384 is an apocalyptic number.

It is an amenable number.

12247354384 is a deficient number, since it is larger than the sum of its proper divisors (11484006300).

12247354384 is a wasteful number, since it uses less digits than its factorization.

12247354384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68122 (or 68116 counting only the distinct ones).

The product of its digits is 645120, while the sum is 43.

The spelling of 12247354384 in words is "twelve billion, two hundred forty-seven million, three hundred fifty-four thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 14197 28394 53917 56788 107834 113576 215668 227152 431336 862672 765459649 1530919298 3061838596 6123677192 12247354384