Search a number
-
+
23032755 = 3657189
BaseRepresentation
bin101011111011…
…1001110110011
31121100012000000
41113313032303
521344022010
62141401043
7366526614
oct127671663
947305000
1023032755
1112001939
127869183
134a05965
1430b7c0b
15204e7c0
hex15f73b3

23032755 has 56 divisors (see below), whose sum is σ = 42495840. Its totient is φ = 11975040.

The previous prime is 23032753. The next prime is 23032771. The reversal of 23032755 is 55723032.

It is not a de Polignac number, because 23032755 - 21 = 23032753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23032753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 258751 + ... + 258839.

Almost surely, 223032755 is an apocalyptic number.

23032755 is a deficient number, since it is larger than the sum of its proper divisors (19463085).

23032755 is an frugal number, since it uses more digits than its factorization.

23032755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 23032755 is about 4799.2452531622. The cubic root of 23032755 is about 284.5216352000.

Adding to 23032755 its reverse (55723032), we get a palindrome (78755787).

The spelling of 23032755 in words is "twenty-three million, thirty-two thousand, seven hundred fifty-five".

Divisors: 1 3 5 9 15 27 45 71 81 89 135 213 243 267 355 405 445 639 729 801 1065 1215 1335 1917 2403 3195 3645 4005 5751 6319 7209 9585 12015 17253 18957 21627 28755 31595 36045 51759 56871 64881 86265 94785 108135 170613 258795 284355 324405 511839 853065 1535517 2559195 4606551 7677585 23032755