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23880087 = 32711172027
BaseRepresentation
bin101101100011…
…0000110010111
31122221020022200
41123012012113
522103130322
62211455543
7406656150
oct133060627
948836280
1023880087
1112530510
127bb75b3
134c4153a
143258927
15216a8ac
hex16c6197

23880087 has 48 divisors (see below), whose sum is σ = 45556992. Its totient is φ = 11669760.

The previous prime is 23880071. The next prime is 23880091. The reversal of 23880087 is 78008832.

It is not a de Polignac number, because 23880087 - 24 = 23880071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23880037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10768 + ... + 12794.

It is an arithmetic number, because the mean of its divisors is an integer number (949104).

Almost surely, 223880087 is an apocalyptic number.

23880087 is a deficient number, since it is larger than the sum of its proper divisors (21676905).

23880087 is a wasteful number, since it uses less digits than its factorization.

23880087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 23880087 is about 4886.7255908225. The cubic root of 23880087 is about 287.9687104317.

The spelling of 23880087 in words is "twenty-three million, eight hundred eighty thousand, eighty-seven".

Divisors: 1 3 7 9 11 17 21 33 51 63 77 99 119 153 187 231 357 561 693 1071 1309 1683 2027 3927 6081 11781 14189 18243 22297 34459 42567 66891 103377 127701 156079 200673 241213 310131 379049 468237 723639 1137147 1404711 2170917 2653343 3411441 7960029 23880087