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23921053 = 132517331
BaseRepresentation
bin101101101000…
…0000110011101
31200000022111221
41123100012131
522110433203
62212413341
7410216452
oct133200635
950008457
1023921053
1112559272
128017251
134c57090
143269829
152177abd
hex16d019d

23921053 has 8 divisors (see below), whose sum is σ = 25867296. Its totient is φ = 21990000.

The previous prime is 23921047. The next prime is 23921059. The reversal of 23921053 is 35012932.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23921047) and next prime (23921059).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23921053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23921059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403 + ... + 6928.

It is an arithmetic number, because the mean of its divisors is an integer number (3233412).

Almost surely, 223921053 is an apocalyptic number.

It is an amenable number.

23921053 is a deficient number, since it is larger than the sum of its proper divisors (1946243).

23921053 is a wasteful number, since it uses less digits than its factorization.

23921053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7595.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 23921053 is about 4890.9153540007. The cubic root of 23921053 is about 288.1332853037.

Adding to 23921053 its reverse (35012932), we get a palindrome (58933985).

It can be divided in two parts, 239210 and 53, that multiplied together give a triangular number (12678130 = T5035).

The spelling of 23921053 in words is "twenty-three million, nine hundred twenty-one thousand, fifty-three".

Divisors: 1 13 251 3263 7331 95303 1840081 23921053