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12469990452 = 22310119495279
BaseRepresentation
bin10111001110100010…
…01111010000110100
31012012001111011001020
423213101033100310
5201014304143302
65421215101140
7621006112203
oct134721172064
935161434036
1012469990452
115319a91437
1225002117b0
13123964049a
1486420123a
154ceb5bebc
hex2e744f434

12469990452 has 48 divisors (see below), whose sum is σ = 29405376000. Its totient is φ = 4112617600.

The previous prime is 12469990447. The next prime is 12469990483. The reversal of 12469990452 is 25409996421.

12469990452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12469990395 and 12469990404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2359549 + ... + 2364827.

It is an arithmetic number, because the mean of its divisors is an integer number (612612000).

Almost surely, 212469990452 is an apocalyptic number.

12469990452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12469990452 is an abundant number, since it is smaller than the sum of its proper divisors (16935385548).

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

12469990452 is a wasteful number, since it uses less digits than its factorization.

12469990452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7336 (or 7334 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 12469990452 in words is "twelve billion, four hundred sixty-nine million, nine hundred ninety thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 101 202 303 404 606 1212 1949 3898 5279 5847 7796 10558 11694 15837 21116 23388 31674 63348 196849 393698 533179 590547 787396 1066358 1181094 1599537 2132716 2362188 3199074 6398148 10288771 20577542 30866313 41155084 61732626 123465252 1039165871 2078331742 3117497613 4156663484 6234995226 12469990452