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239768045 = 51115727767
BaseRepresentation
bin11100100101010…
…01000111101101
3121201011110220222
432102221013231
5442340034140
635443021125
75640665126
oct1622510755
9551143828
10239768045
11113385310
126836a7a5
133a89c3aa
1423bb504d
15160b25b5
hexe4a91ed

239768045 has 16 divisors (see below), whose sum is σ = 315888768. Its totient is φ = 173259840.

The previous prime is 239767987. The next prime is 239768093. The reversal of 239768045 is 540867932.

It is not a de Polignac number, because 239768045 - 28 = 239767789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 239767987 and 239768005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5249 + ... + 22518.

It is an arithmetic number, because the mean of its divisors is an integer number (19743048).

Almost surely, 2239768045 is an apocalyptic number.

It is an amenable number.

239768045 is a deficient number, since it is larger than the sum of its proper divisors (76120723).

239768045 is a wasteful number, since it uses less digits than its factorization.

239768045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27940.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 239768045 is about 15484.4452596791. The cubic root of 239768045 is about 621.2462316259.

The spelling of 239768045 in words is "two hundred thirty-nine million, seven hundred sixty-eight thousand, forty-five".

Divisors: 1 5 11 55 157 785 1727 8635 27767 138835 305437 1527185 4359419 21797095 47953609 239768045