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12402973198 = 2721123394919
BaseRepresentation
bin10111000110100011…
…00101101000001110
31012000101101022122201
423203101211220032
5200400130120243
65410422432114
7616233350500
oct134321455016
935011338581
1012402973198
115295178380
1224a189263a
1312287a74c5
14859357d70
154c8d2004d
hex2e3465a0e

12402973198 has 48 divisors (see below), whose sum is σ = 23624265600. Its totient is φ = 4829279280.

The previous prime is 12402973189. The next prime is 12402973213. The reversal of 12402973198 is 89137920421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2518983 + ... + 2523901.

It is an arithmetic number, because the mean of its divisors is an integer number (492172200).

Almost surely, 212402973198 is an apocalyptic number.

12402973198 is a deficient number, since it is larger than the sum of its proper divisors (11221292402).

12402973198 is a wasteful number, since it uses less digits than its factorization.

12402973198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285 (or 7278 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 12402973198 in words is "twelve billion, four hundred two million, nine hundred seventy-three thousand, one hundred ninety-eight".

Divisors: 1 2 7 11 14 22 49 77 98 154 539 1078 2339 4678 4919 9838 16373 25729 32746 34433 51458 54109 68866 108218 114611 180103 229222 241031 360206 378763 482062 757526 1260721 2521442 2651341 5302682 11505541 23011082 80538787 126560951 161077574 253121902 563771509 885926657 1127543018 1771853314 6201486599 12402973198