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23228770 = 257333169
BaseRepresentation
bin101100010011…
…1000101100010
31121201010212211
41120213011202
521421310040
62145512334
7401304235
oct130470542
947633784
1023228770
1112126134
1279426aa
134a73c46
14312941c
15208c8ea
hex1627162

23228770 has 16 divisors (see below), whose sum is σ = 41882040. Its totient is φ = 9275904.

The previous prime is 23228759. The next prime is 23228801. The reversal of 23228770 is 7782232.

It can be written as a sum of positive squares in 4 ways, for example, as 23203489 + 25281 = 4817^2 + 159^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5746 + ... + 8914.

Almost surely, 223228770 is an apocalyptic number.

23228770 is a deficient number, since it is larger than the sum of its proper divisors (18653270).

23228770 is a wasteful number, since it uses less digits than its factorization.

23228770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3909.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 23228770 is about 4819.6234292733. The cubic root of 23228770 is about 285.3264751581.

The spelling of 23228770 in words is "twenty-three million, two hundred twenty-eight thousand, seven hundred seventy".

Divisors: 1 2 5 10 733 1466 3169 3665 6338 7330 15845 31690 2322877 4645754 11614385 23228770