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210212310220 = 2251137896781
BaseRepresentation
bin1100001111000110100…
…0010100110011001100
3202002121001112210111021
43003301220110303030
511421003322411340
6240323055203524
721121154104123
oct3036150246314
9662531483437
10210212310220
1181172407000
12348a78165a4
1316a90cb3ba3
14a26250caba
155704cbde4a
hex30f1a14ccc

210212310220 has 48 divisors (see below), whose sum is σ = 485557331616. Its totient is φ = 76440830400.

The previous prime is 210212310169. The next prime is 210212310233. The reversal of 210212310220 is 22013212012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210212310194 and 210212310203.

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, 3921771 + ... + 3975010.

It is an arithmetic number, because the mean of its divisors is an integer number (10115777742).

Almost surely, 2210212310220 is an apocalyptic number.

210212310220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210212310220 is an abundant number, since it is smaller than the sum of its proper divisors (275345021396).

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

210212310220 is a wasteful number, since it uses less digits than its factorization.

210212310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7896823 (or 7896799 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 210212310220 its reverse (22013212012), we get a palindrome (232225522232).

The spelling of 210212310220 in words is "two hundred ten billion, two hundred twelve million, three hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 1210 1331 2420 2662 5324 6655 13310 26620 7896781 15793562 31587124 39483905 78967810 86864591 157935620 173729182 347458364 434322955 868645910 955510501 1737291820 1911021002 3822042004 4777552505 9555105010 10510615511 19110210020 21021231022 42042462044 52553077555 105106155110 210212310220