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22107781120 = 211529109683
BaseRepresentation
bin10100100101101110…
…011111100000000000
32010001201200122101011
4110211232133200000
5330234042443440
614053422250304
71411565016235
oct244556374000
963051618334
1022107781120
1194152a2197
12434ba26994
13211428b3b9
1410da1d978c
15895d1d9ea
hex525b9f800

22107781120 has 192 divisors, whose sum is σ = 55459404000. Its totient is φ = 8447459328.

The previous prime is 22107781063. The next prime is 22107781127. The reversal of 22107781120 is 2118770122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22107781127) 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, 32368299 + ... + 32368981.

Almost surely, 222107781120 is an apocalyptic number.

22107781120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22107781120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27729702000).

22107781120 is an abundant number, since it is smaller than the sum of its proper divisors (33351622880).

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

22107781120 is a wasteful number, since it uses less digits than its factorization.

22107781120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 31.

The spelling of 22107781120 in words is "twenty-two billion, one hundred seven million, seven hundred eighty-one thousand, one hundred twenty".