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12210212310 = 2351979205663
BaseRepresentation
bin10110101111100100…
…10000110111010110
31011111221200001102120
423113302100313112
5200001303243220
65335335120410
7611403043422
oct132762206726
934457601376
1012210212310
1151a638a25a
122449213106
1311c78861ca
1483b8dbb82
154b6e45a40
hex2d7c90dd6

12210212310 has 32 divisors (see below), whose sum is σ = 29319459840. Its totient is φ = 3254395488.

The previous prime is 12210212303. The next prime is 12210212317. The reversal of 12210212310 is 1321201221.

It is an interprime number because it is at equal distance from previous prime (12210212303) and next prime (12210212317).

It is a super-2 number, since 2×122102123102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12210212310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210212317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43462 + ... + 162201.

It is an arithmetic number, because the mean of its divisors is an integer number (916233120).

Almost surely, 212210212310 is an apocalyptic number.

12210212310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12210212310 is an abundant number, since it is smaller than the sum of its proper divisors (17109247530).

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

12210212310 is a wasteful number, since it uses less digits than its factorization.

12210212310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207652.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12210212310 its reverse (1321201221), we get a palindrome (13531413531).

The spelling of 12210212310 in words is "twelve billion, two hundred ten million, two hundred twelve thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 1979 3958 5937 9895 11874 19790 29685 59370 205663 411326 616989 1028315 1233978 2056630 3084945 6169890 407007077 814014154 1221021231 2035035385 2442042462 4070070770 6105106155 12210212310