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23209994 = 216769491
BaseRepresentation
bin101100010001…
…0100000001010
31121200012010102
41120202200022
521420204434
62145245402
7401165423
oct130424012
947605112
1023209994
1112113015
127933862
134a68532
14312264a
15208707e
hex162280a

23209994 has 8 divisors (see below), whose sum is σ = 35023968. Its totient is φ = 11535340.

The previous prime is 23209993. The next prime is 23209997. The reversal of 23209994 is 49990232.

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

It is not an unprimeable number, because it can be changed into a prime (23209993) 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, 34412 + ... + 35079.

It is an arithmetic number, because the mean of its divisors is an integer number (4377996).

Almost surely, 223209994 is an apocalyptic number.

23209994 is a deficient number, since it is larger than the sum of its proper divisors (11813974).

23209994 is a wasteful number, since it uses less digits than its factorization.

23209994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69660.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 23209994 is about 4817.6751654714. The cubic root of 23209994 is about 285.2495772137.

The spelling of 23209994 in words is "twenty-three million, two hundred nine thousand, nine hundred ninety-four".

Divisors: 1 2 167 334 69491 138982 11604997 23209994