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23867141 = 971971249
BaseRepresentation
bin101101100001…
…0111100000101
31122220120120012
41123002330011
522102222031
62211320005
7406603334
oct133027405
948816505
1023867141
1112521811
127bb0005
134c3868c
143253d1b
152166b2b
hex16c2f05

23867141 has 8 divisors (see below), whose sum is σ = 24255000. Its totient is φ = 23482368.

The previous prime is 23867089. The next prime is 23867143. The reversal of 23867141 is 14176832.

23867141 = 34542 + 34552.

It can be written as a sum of positive squares in 4 ways, for example, as 8579041 + 15288100 = 2929^2 + 3910^2 .

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-23867141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23867098 and 23867107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23867143) 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, 18485 + ... + 19733.

It is an arithmetic number, because the mean of its divisors is an integer number (3031875).

Almost surely, 223867141 is an apocalyptic number.

23867141 is the 3455-th centered square number.

It is an amenable number.

23867141 is a deficient number, since it is larger than the sum of its proper divisors (387859).

23867141 is a wasteful number, since it uses less digits than its factorization.

23867141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543.

The product of its digits is 8064, while the sum is 32.

The square root of 23867141 is about 4885.4008023907. The cubic root of 23867141 is about 287.9166626479.

The spelling of 23867141 in words is "twenty-three million, eight hundred sixty-seven thousand, one hundred forty-one".

Divisors: 1 97 197 1249 19109 121153 246053 23867141