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12403204144 = 2443178310111
BaseRepresentation
bin10111000110100100…
…11110000000110000
31012000101211001110021
423203102132000300
5200400210013034
65410431413224
7616235332012
oct134322360060
935011731407
1012403204144
115295315941
1224a1984214
131228858666
148593b81b2
154c8d686b4
hex2e349e030

12403204144 has 40 divisors (see below), whose sum is σ = 24606298112. Its totient is φ = 6053382720.

The previous prime is 12403204133. The next prime is 12403204153. The reversal of 12403204144 is 44140230421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221649 + ... + 1231759.

Almost surely, 212403204144 is an apocalyptic number.

It is an amenable number.

12403204144 is a deficient number, since it is larger than the sum of its proper divisors (12203093968).

12403204144 is a wasteful number, since it uses less digits than its factorization.

12403204144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11945 (or 11939 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12403204144 its reverse (44140230421), we get a palindrome (56543434565).

The spelling of 12403204144 in words is "twelve billion, four hundred three million, two hundred four thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 43 86 172 344 688 1783 3566 7132 10111 14264 20222 28528 40444 76669 80888 153338 161776 306676 434773 613352 869546 1226704 1739092 3478184 6956368 18027913 36055826 72111652 144223304 288446608 775200259 1550400518 3100801036 6201602072 12403204144