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22690730 = 253795987
BaseRepresentation
bin101011010001…
…1101110101010
31120200210211102
41112203232222
521302100410
62130201402
7363603506
oct126435652
946623742
1022690730
1111898977
127723262
13491608a
143029306
151ed32a5
hex15a3baa

22690730 has 16 divisors (see below), whose sum is σ = 40957920. Its totient is φ = 9050832.

The previous prime is 22690697. The next prime is 22690747. The reversal of 22690730 is 3709622.

It is a junction number, because it is equal to n+sod(n) for n = 22690693 and 22690702.

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, 797 + ... + 6783.

It is an arithmetic number, because the mean of its divisors is an integer number (2559870).

Almost surely, 222690730 is an apocalyptic number.

22690730 is a deficient number, since it is larger than the sum of its proper divisors (18267190).

22690730 is a wasteful number, since it uses less digits than its factorization.

22690730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 22690730 is about 4763.4787708145. The cubic root of 22690730 is about 283.1062709844.

The spelling of 22690730 in words is "twenty-two million, six hundred ninety thousand, seven hundred thirty".

Divisors: 1 2 5 10 379 758 1895 3790 5987 11974 29935 59870 2269073 4538146 11345365 22690730