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12302320912 = 2471761731451
BaseRepresentation
bin10110111010100011…
…01000010100010000
31011202100222122200021
423131101220110100
5200143343232122
65352425233224
7613602000550
oct133521502420
934670878607
1012302320912
115243380872
122474032814
131210995b3b
14849c37160
154c008c1c7
hex2dd468510

12302320912 has 160 divisors (see below), whose sum is σ = 29738168064. Its totient is φ = 4810752000.

The previous prime is 12302320889. The next prime is 12302320913. The reversal of 12302320912 is 21902320321.

It is not an unprimeable number, because it can be changed into a prime (12302320913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8477787 + ... + 8479237.

Almost surely, 212302320912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12302320912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14869084032).

12302320912 is an abundant number, since it is smaller than the sum of its proper divisors (17435847152).

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

12302320912 is a wasteful number, since it uses less digits than its factorization.

12302320912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617 (or 1611 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 12302320912 in words is "twelve billion, three hundred two million, three hundred twenty thousand, nine hundred twelve".

Divisors: 1 2 4 7 8 14 16 17 28 34 56 61 68 73 112 119 122 136 146 238 244 272 292 427 476 488 511 584 854 952 976 1022 1037 1168 1241 1451 1708 1904 2044 2074 2482 2902 3416 4088 4148 4453 4964 5804 6832 7259 8176 8296 8687 8906 9928 10157 11608 14518 16592 17374 17812 19856 20314 23216 24667 29036 31171 34748 35624 40628 49334 58072 62342 69496 71248 75701 81256 88511 98668 105923 116144 124684 138992 151402 162512 172669 177022 197336 211846 249368 302804 345338 354044 394672 423692 498736 529907 605608 619577 690676 708088 741461 847384 1059814 1211216 1239154 1381352 1416176 1482922 1504687 1694768 1800691 2119628 2478308 2762704 2965844 3009374 3601382 4239256 4956616 5931688 6018748 6461303 7202764 8478512 9913232 10532809 11863376 12037496 12604837 12922606 14405528 21065618 24074992 25209674 25845212 28811056 42131236 45229121 50419348 51690424 84262472 90458242 100838696 103380848 109842151 168524944 180916484 201677392 219684302 361832968 439368604 723665936 768895057 878737208 1537790114 1757474416 3075580228 6151160456 12302320912