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23229730 = 252322973
BaseRepresentation
bin101100010011…
…1010100100010
31121201012012101
41120213110202
521421322410
62145521014
7401310106
oct130472442
947635171
1023229730
1112126927
12794316a
134a74504
143129906
15208cd3a
hex1627522

23229730 has 8 divisors (see below), whose sum is σ = 41813532. Its totient is φ = 9291888.

The previous prime is 23229727. The next prime is 23229733. The reversal of 23229730 is 3792232.

It is an interprime number because it is at equal distance from previous prime (23229727) and next prime (23229733).

It can be written as a sum of positive squares in 2 ways, for example, as 21261321 + 1968409 = 4611^2 + 1403^2 .

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 (23229733) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1161477 + ... + 1161496.

Almost surely, 223229730 is an apocalyptic number.

23229730 is a deficient number, since it is larger than the sum of its proper divisors (18583802).

23229730 is a wasteful number, since it uses less digits than its factorization.

23229730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322980.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 23229730 is about 4819.7230210874. The cubic root of 23229730 is about 285.3304057672.

The spelling of 23229730 in words is "twenty-three million, two hundred twenty-nine thousand, seven hundred thirty".

Divisors: 1 2 5 10 2322973 4645946 11614865 23229730