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12103401204 = 22321997182423
BaseRepresentation
bin10110100010110101…
…10011111011110100
31011020111200111010200
423101122303323310
5144241432314304
65321001520500
7605635132656
oct132132637364
934214614120
1012103401204
115151066514
1224194a3130
1311ab6c947b
1482b6566d6
154ac897e39
hex2d16b3ef4

12103401204 has 72 divisors (see below), whose sum is σ = 32537144640. Its totient is φ = 3782702592.

The previous prime is 12103401203. The next prime is 12103401217. The reversal of 12103401204 is 40210430121.

12103401204 is a `hidden beast` number, since 121 + 0 + 340 + 1 + 204 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103401203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24864 + ... + 157559.

Almost surely, 212103401204 is an apocalyptic number.

It is an amenable number.

12103401204 is an abundant number, since it is smaller than the sum of its proper divisors (20433743436).

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

12103401204 is a wasteful number, since it uses less digits than its factorization.

12103401204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182549 (or 182544 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12103401204 its reverse (40210430121), we get a palindrome (52313831325).

The spelling of 12103401204 in words is "twelve billion, one hundred three million, four hundred one thousand, two hundred four".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 97 114 171 194 228 291 342 388 582 684 873 1164 1746 1843 3492 3686 5529 7372 11058 16587 22116 33174 66348 182423 364846 547269 729692 1094538 1641807 2189076 3283614 3466037 6567228 6932074 10398111 13864148 17695031 20796222 31194333 35390062 41592444 53085093 62388666 70780124 106170186 124777332 159255279 212340372 318510558 336205589 637021116 672411178 1008616767 1344822356 2017233534 3025850301 4034467068 6051700602 12103401204