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11102101220 = 2257647312251
BaseRepresentation
bin10100101011011110…
…01001111011100100
31001122201120011210002
422111233021323210
5140214114214340
65033352320432
7542056206020
oct122557117344
931581504702
1011102101220
114787934a71
12219a0a3118
13107c125682
1477468b380
1544ea0b715
hex295bc9ee4

11102101220 has 48 divisors (see below), whose sum is σ = 26651334528. Its totient is φ = 3805536000.

The previous prime is 11102101211. The next prime is 11102101247. The reversal of 11102101220 is 2210120111.

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, 900095 + ... + 912345.

It is an arithmetic number, because the mean of its divisors is an integer number (555236136).

Almost surely, 211102101220 is an apocalyptic number.

11102101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11102101220 is an abundant number, since it is smaller than the sum of its proper divisors (15549233308).

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

11102101220 is a wasteful number, since it uses less digits than its factorization.

11102101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18740 (or 18738 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11102101220 its reverse (2210120111), we get a palindrome (13312221331).

The spelling of 11102101220 in words is "eleven billion, one hundred two million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 6473 12251 12946 24502 25892 32365 45311 49004 61255 64730 85757 90622 122510 129460 171514 181244 226555 245020 343028 428785 453110 857570 906220 1715140 79300723 158601446 317202892 396503615 555105061 793007230 1110210122 1586014460 2220420244 2775525305 5551050610 11102101220