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22207660420 = 22511281359231
BaseRepresentation
bin10100101011101011…
…100000000110000100
32010022200122001000111
4110223223200012010
5330440130113140
614111351122404
71414216666441
oct245353400604
963280561014
1022207660420
119466710a70
124379373404
13212bb8bc8a
1411095989c8
1589e99c7ea
hex52bae0184

22207660420 has 48 divisors (see below), whose sum is σ = 51056925696. Its totient is φ = 8046752000.

The previous prime is 22207660393. The next prime is 22207660421. The reversal of 22207660420 is 2406670222.

It is not an unprimeable number, because it can be changed into a prime (22207660421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117796 + ... + 241435.

It is an arithmetic number, because the mean of its divisors is an integer number (1063685952).

Almost surely, 222207660420 is an apocalyptic number.

22207660420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22207660420 is an abundant number, since it is smaller than the sum of its proper divisors (28849265276).

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

22207660420 is a wasteful number, since it uses less digits than its factorization.

22207660420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359532 (or 359530 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The spelling of 22207660420 in words is "twenty-two billion, two hundred seven million, six hundred sixty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 281 562 1124 1405 2810 3091 5620 6182 12364 15455 30910 61820 359231 718462 1436924 1796155 3592310 3951541 7184620 7903082 15806164 19757705 39515410 79030820 100943911 201887822 403775644 504719555 1009439110 1110383021 2018878220 2220766042 4441532084 5551915105 11103830210 22207660420