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22833990 = 2325534787
BaseRepresentation
bin101011100011…
…0101101000110
31120222002100100
41113012231012
521321141430
62133224530
7365041254
oct127065506
946862310
1022833990
1111986573
127792146
13496634a
1430655d4
152010960
hex15c6b46

22833990 has 48 divisors (see below), whose sum is σ = 60501168. Its totient is φ = 5972928.

The previous prime is 22833983. The next prime is 22834013. The reversal of 22833990 is 9933822.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2377 + ... + 7163.

It is an arithmetic number, because the mean of its divisors is an integer number (1260441).

Almost surely, 222833990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22833990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30250584).

22833990 is an abundant number, since it is smaller than the sum of its proper divisors (37667178).

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

22833990 is a wasteful number, since it uses less digits than its factorization.

22833990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853 (or 4850 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 22833990 is about 4778.4924400903. The cubic root of 22833990 is about 283.7008272544.

The spelling of 22833990 in words is "twenty-two million, eight hundred thirty-three thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 53 90 106 159 265 318 477 530 795 954 1590 2385 4770 4787 9574 14361 23935 28722 43083 47870 71805 86166 143610 215415 253711 430830 507422 761133 1268555 1522266 2283399 2537110 3805665 4566798 7611330 11416995 22833990