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23972030 = 252397203
BaseRepresentation
bin101101101110…
…0100010111110
31200002220102222
41123130202332
522114101110
62213445342
7410521205
oct133344276
950086388
1023972030
11125935a5
128040852
134c74344
14328023c
152187c55
hex16dc8be

23972030 has 8 divisors (see below), whose sum is σ = 43149672. Its totient is φ = 9588808.

The previous prime is 23972017. The next prime is 23972033. The reversal of 23972030 is 3027932.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23972033) 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, 1198592 + ... + 1198611.

It is an arithmetic number, because the mean of its divisors is an integer number (5393709).

Almost surely, 223972030 is an apocalyptic number.

23972030 is a deficient number, since it is larger than the sum of its proper divisors (19177642).

23972030 is a wasteful number, since it uses less digits than its factorization.

23972030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397210.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 23972030 is about 4896.1239771885. The cubic root of 23972030 is about 288.3378157240.

Adding to 23972030 its reverse (3027932), we get a palindrome (26999962).

The spelling of 23972030 in words is "twenty-three million, nine hundred seventy-two thousand, thirty".

Divisors: 1 2 5 10 2397203 4794406 11986015 23972030