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22412990 = 252241299
BaseRepresentation
bin101010101111…
…1111010111110
31120011200211202
41111133322332
521214203430
62120215502
7361335665
oct125377276
946150752
1022412990
1111719236
12760a592
134849832
142d95ddc
151e7ad45
hex155febe

22412990 has 8 divisors (see below), whose sum is σ = 40343400. Its totient is φ = 8965192.

The previous prime is 22412983. The next prime is 22412993. The reversal of 22412990 is 9921422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22412993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120640 + ... + 1120659.

It is an arithmetic number, because the mean of its divisors is an integer number (5042925).

Almost surely, 222412990 is an apocalyptic number.

22412990 is a deficient number, since it is larger than the sum of its proper divisors (17930410).

22412990 is a wasteful number, since it uses less digits than its factorization.

22412990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241306.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 22412990 is about 4734.2359468028. The cubic root of 22412990 is about 281.9464294733.

The spelling of 22412990 in words is "twenty-two million, four hundred twelve thousand, nine hundred ninety".

Divisors: 1 2 5 10 2241299 4482598 11206495 22412990