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10331212220 = 2257233208451
BaseRepresentation
bin10011001111100100…
…11100100110111100
3222122222222221212122
421213302130212330
5132124242242340
64425053422112
7514005566150
oct114762344674
928588887778
1010331212220
11442177771a
122003a9a938
13c884c5c34
1470013d060
15406ed4db5
hex267c9c9bc

10331212220 has 48 divisors (see below), whose sum is σ = 25872956928. Its totient is φ = 3388123200.

The previous prime is 10331212211. The next prime is 10331212253. The reversal of 10331212220 is 2221213301.

It is a congruent number.

It is an unprimeable number.

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, 1601006 + ... + 1607445.

It is an arithmetic number, because the mean of its divisors is an integer number (539019936).

Almost surely, 210331212220 is an apocalyptic number.

10331212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10331212220 is an abundant number, since it is smaller than the sum of its proper divisors (15541744708).

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

10331212220 is a wasteful number, since it uses less digits than its factorization.

10331212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208490 (or 3208488 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10331212220 its reverse (2221213301), we get a palindrome (12552425521).

The spelling of 10331212220 in words is "ten billion, three hundred thirty-one million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 3208451 6416902 12833804 16042255 22459157 32084510 44918314 64169020 73794373 89836628 112295785 147588746 224591570 295177492 368971865 449183140 516560611 737943730 1033121222 1475887460 2066242444 2582803055 5165606110 10331212220