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103211133220 = 22513735437889
BaseRepresentation
bin110000000011111011…
…1001110100100100100
3100212101221221210220201
41200013313032210210
53142334022230340
6115225312440244
710312445104636
oct1400767164444
9325357853821
10103211133220
113a853aa3008
1218005249084
13996ab78880
144dd1706a56
152a410d679a
hex1807dce924

103211133220 has 48 divisors (see below), whose sum is σ = 236613469680. Its totient is φ = 37586681856.

The previous prime is 103211133217. The next prime is 103211133241. The reversal of 103211133220 is 22331112301.

It can be written as a sum of positive squares in 8 ways, for example, as 4031488036 + 99179645184 = 63494^2 + 314928^2 .

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, 2699965 + ... + 2737924.

It is an arithmetic number, because the mean of its divisors is an integer number (4929447285).

Almost surely, 2103211133220 is an apocalyptic number.

103211133220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103211133220 is an abundant number, since it is smaller than the sum of its proper divisors (133402336460).

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

103211133220 is a wasteful number, since it uses less digits than its factorization.

103211133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5437984 (or 5437982 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103211133220 its reverse (22331112301), we get a palindrome (125542245521).

The spelling of 103211133220 in words is "one hundred three billion, two hundred eleven million, one hundred thirty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 73 130 146 260 292 365 730 949 1460 1898 3796 4745 9490 18980 5437889 10875778 21751556 27189445 54378890 70692557 108757780 141385114 282770228 353462785 396965897 706925570 793931794 1413851140 1587863588 1984829485 3969658970 5160556661 7939317940 10321113322 20642226644 25802783305 51605566610 103211133220