Search a number
-
+
23994369 = 327254409
BaseRepresentation
bin101101110001…
…0000000000001
31200011001002100
41123202000001
522120304434
62214141013
7410643300
oct133420001
950131070
1023994369
11125a9363
128051769
134c81569
143288437
15218e699
hex16e2001

23994369 has 18 divisors (see below), whose sum is σ = 40317810. Its totient is φ = 13710816.

The previous prime is 23994367. The next prime is 23994371. The reversal of 23994369 is 96349932.

It is an interprime number because it is at equal distance from previous prime (23994367) and next prime (23994371).

It can be written as a sum of positive squares in only one way, i.e., 16769025 + 7225344 = 4095^2 + 2688^2 .

It is not a de Polignac number, because 23994369 - 21 = 23994367 is a prime.

It is a super-2 number, since 2×239943692 = 1151459487416322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23994367) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26764 + ... + 27645.

It is a Proth number, since it is equal to 2929 ⋅ 213 + 1 and 2929 < 213.

Almost surely, 223994369 is an apocalyptic number.

It is an amenable number.

23994369 is a deficient number, since it is larger than the sum of its proper divisors (16323441).

23994369 is a wasteful number, since it uses less digits than its factorization.

23994369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54429 (or 54419 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 23994369 is about 4898.4047403211. The cubic root of 23994369 is about 288.4273531099.

The spelling of 23994369 in words is "twenty-three million, nine hundred ninety-four thousand, three hundred sixty-nine".

Divisors: 1 3 7 9 21 49 63 147 441 54409 163227 380863 489681 1142589 2666041 3427767 7998123 23994369