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10222120990 = 256722767211
BaseRepresentation
bin10011000010100100…
…10011000000011110
3222101101201112211201
421201102103000132
5131413330332430
64410155310114
7511212411004
oct114122230036
928341645751
1010222120990
114376136884
121b9344b33a
13c6ba1b403
146cd862a74
153ec6368ca
hex26149301e

10222120990 has 32 divisors (see below), whose sum is σ = 18756987264. Its totient is φ = 4010017440.

The previous prime is 10222120967. The next prime is 10222120991. The reversal of 10222120990 is 9902122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222120991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118485 + ... + 185695.

It is an arithmetic number, because the mean of its divisors is an integer number (586155852).

Almost surely, 210222120990 is an apocalyptic number.

10222120990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10222120990 is a deficient number, since it is larger than the sum of its proper divisors (8534866274).

10222120990 is a wasteful number, since it uses less digits than its factorization.

10222120990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67512.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 10222120990 in words is "ten billion, two hundred twenty-two million, one hundred twenty thousand, nine hundred ninety".

Divisors: 1 2 5 10 67 134 227 335 454 670 1135 2270 15209 30418 67211 76045 134422 152090 336055 672110 4503137 9006274 15256897 22515685 30513794 45031370 76284485 152568970 1022212099 2044424198 5111060495 10222120990