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22812330 = 235760411
BaseRepresentation
bin101011100000…
…1011010101010
31120220222122010
41113001122222
521314443310
62132540350
7364621152
oct127013252
946828563
1022812330
1111971272
1277816b6
134959528
14305b762
152009320
hex15c16aa

22812330 has 16 divisors (see below), whose sum is σ = 54749664. Its totient is φ = 6083280.

The previous prime is 22812319. The next prime is 22812397. The reversal of 22812330 is 3321822.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22812297 and 22812306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380176 + ... + 380235.

It is an arithmetic number, because the mean of its divisors is an integer number (3421854).

Almost surely, 222812330 is an apocalyptic number.

22812330 is an abundant number, since it is smaller than the sum of its proper divisors (31937334).

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

22812330 is a wasteful number, since it uses less digits than its factorization.

22812330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760421.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 22812330 is about 4776.2254971892. The cubic root of 22812330 is about 283.6110940109.

The spelling of 22812330 in words is "twenty-two million, eight hundred twelve thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 760411 1520822 2281233 3802055 4562466 7604110 11406165 22812330