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23299730 = 254335381
BaseRepresentation
bin101100011100…
…0011010010010
31121211202012222
41120320122102
521431042410
62151221042
7402021146
oct130703222
947752188
1023299730
1112174483
127977782
134a9a32c
143147226
1520a3955
hex1638692

23299730 has 16 divisors (see below), whose sum is σ = 42044184. Its totient is φ = 9296640.

The previous prime is 23299699. The next prime is 23299769. The reversal of 23299730 is 3799232.

It can be written as a sum of positive squares in 4 ways, for example, as 11895601 + 11404129 = 3449^2 + 3377^2 .

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, 1640 + ... + 7020.

Almost surely, 223299730 is an apocalyptic number.

23299730 is a deficient number, since it is larger than the sum of its proper divisors (18744454).

23299730 is a wasteful number, since it uses less digits than its factorization.

23299730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5821.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 23299730 is about 4826.9793867387. The cubic root of 23299730 is about 285.6167213308.

The spelling of 23299730 in words is "twenty-three million, two hundred ninety-nine thousand, seven hundred thirty".

Divisors: 1 2 5 10 433 866 2165 4330 5381 10762 26905 53810 2329973 4659946 11649865 23299730