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12442497498 = 2322939235199
BaseRepresentation
bin10111001011010000…
…10111000111011010
31012010010202100210200
423211220113013122
5200440234404443
65414353523030
7620223324624
oct134550270732
935103670720
1012442497498
115305513592
1224b2b73476
131233a35672
148606c5c14
154cc52add3
hex2e5a171da

12442497498 has 24 divisors (see below), whose sum is σ = 26968032000. Its totient is φ = 4146070344.

The previous prime is 12442497481. The next prime is 12442497517. The reversal of 12442497498 is 89479424421.

12442497498 is a `hidden beast` number, since 1 + 2 + 44 + 24 + 97 + 498 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64698 + ... + 170501.

It is an arithmetic number, because the mean of its divisors is an integer number (1123668000).

Almost surely, 212442497498 is an apocalyptic number.

12442497498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12442497498 is an abundant number, since it is smaller than the sum of its proper divisors (14525534502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12442497498 is a wasteful number, since it uses less digits than its factorization.

12442497498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238146 (or 238143 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 12442497498 in words is "twelve billion, four hundred forty-two million, four hundred ninety-seven thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 9 18 2939 5878 8817 17634 26451 52902 235199 470398 705597 1411194 2116791 4233582 691249861 1382499722 2073749583 4147499166 6221248749 12442497498