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12210642700 = 22521731231701
BaseRepresentation
bin10110101111100111…
…11001111100001100
31011111222110220210221
423113303321330030
5200001411031300
65335352241124
7611406515254
oct132763717414
934458426727
1012210642700
1151a6653653
1224493a01a4
1311c79a7089
1483b9b0964
154b6ecd31a
hex2d7cf9f0c

12210642700 has 72 divisors (see below), whose sum is σ = 28960896384. Its totient is φ = 4448640000.

The previous prime is 12210642671. The next prime is 12210642721. The reversal of 12210642700 is 724601221.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 63151 + ... + 168550.

It is an arithmetic number, because the mean of its divisors is an integer number (402234672).

Almost surely, 212210642700 is an apocalyptic number.

12210642700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210642700 is an abundant number, since it is smaller than the sum of its proper divisors (16750253684).

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

12210642700 is a wasteful number, since it uses less digits than its factorization.

12210642700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231763 (or 231756 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The spelling of 12210642700 in words is "twelve billion, two hundred ten million, six hundred forty-two thousand, seven hundred".

Divisors: 1 2 4 5 10 17 20 25 31 34 50 62 68 85 100 124 155 170 310 340 425 527 620 775 850 1054 1550 1700 2108 2635 3100 5270 10540 13175 26350 52700 231701 463402 926804 1158505 2317010 3938917 4634020 5792525 7182731 7877834 11585050 14365462 15755668 19694585 23170100 28730924 35913655 39389170 71827310 78778340 98472925 122106427 143654620 179568275 196945850 244212854 359136550 393891700 488425708 610532135 718273100 1221064270 2442128540 3052660675 6105321350 12210642700