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23280381167 = 372332700427
BaseRepresentation
bin10101101011100111…
…100110110011101111
32020002110010220020112
4111223213212303233
5340134234144132
614410031210235
71452623655251
oct255347466357
966073126215
1023280381167
119967193a3a
12461867697b
1322701ab194
1411abc35cd1
15913c45ab2
hex56b9e6cef

23280381167 has 8 divisors (see below), whose sum is σ = 24012205776. Its totient is φ = 22553957952.

The previous prime is 23280381139. The next prime is 23280381191. The reversal of 23280381167 is 76118308232.

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

It is a cyclic number.

It is not a de Polignac number, because 23280381167 - 222 = 23276186863 is a prime.

It is a super-2 number, since 2×232803811672 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23280381197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341593 + ... + 1358834.

It is an arithmetic number, because the mean of its divisors is an integer number (3001525722).

Almost surely, 223280381167 is an apocalyptic number.

23280381167 is a deficient number, since it is larger than the sum of its proper divisors (731824609).

23280381167 is a wasteful number, since it uses less digits than its factorization.

23280381167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700697.

The product of its (nonzero) digits is 96768, while the sum is 41.

Adding to 23280381167 its reverse (76118308232), we get a palindrome (99398689399).

The spelling of 23280381167 in words is "twenty-three billion, two hundred eighty million, three hundred eighty-one thousand, one hundred sixty-seven".

Divisors: 1 37 233 8621 2700427 99915799 629199491 23280381167