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23070228 = 2231922519
BaseRepresentation
bin101100000000…
…0011000010100
31121102002101220
41120000120110
521401221403
62142250340
7400044066
oct130003024
947362356
1023070228
1112028005
1278869b0
134a19a2c
1430c7736
15205a953
hex1600614

23070228 has 12 divisors (see below), whose sum is σ = 53830560. Its totient is φ = 7690072.

The previous prime is 23070227. The next prime is 23070251. The reversal of 23070228 is 82207032.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 23070198 and 23070207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23070221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961248 + ... + 961271.

It is an arithmetic number, because the mean of its divisors is an integer number (4485880).

Almost surely, 223070228 is an apocalyptic number.

It is an amenable number.

23070228 is an abundant number, since it is smaller than the sum of its proper divisors (30760332).

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

23070228 is a wasteful number, since it uses less digits than its factorization.

23070228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922526 (or 1922524 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 23070228 is about 4803.1477179033. The cubic root of 23070228 is about 284.6758518415.

The spelling of 23070228 in words is "twenty-three million, seventy thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 1922519 3845038 5767557 7690076 11535114 23070228