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82239080 = 23571126701
BaseRepresentation
bin1001110011011…
…01111001101000
312201202011210212
410321231321220
5132023122310
612054400252
72016010040
oct471557150
9181664725
1082239080
1142470490
1223660088
13140655a1
14acca720
157347205
hex4e6de68

82239080 has 64 divisors (see below), whose sum is σ = 230705280. Its totient is φ = 25632000.

The previous prime is 82238971. The next prime is 82239089. The reversal of 82239080 is 8093228.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (82239089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10271 + ... + 16430.

It is an arithmetic number, because the mean of its divisors is an integer number (3604770).

Almost surely, 282239080 is an apocalyptic number.

It is an amenable number.

82239080 is an abundant number, since it is smaller than the sum of its proper divisors (148466200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82239080 is a wasteful number, since it uses less digits than its factorization.

82239080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26730 (or 26726 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 82239080 is about 9068.5765145363. The cubic root of 82239080 is about 434.8699659773.

The spelling of 82239080 in words is "eighty-two million, two hundred thirty-nine thousand, eighty".

Divisors: 1 2 4 5 7 8 10 11 14 20 22 28 35 40 44 55 56 70 77 88 110 140 154 220 280 308 385 440 616 770 1540 3080 26701 53402 106804 133505 186907 213608 267010 293711 373814 534020 587422 747628 934535 1068040 1174844 1468555 1495256 1869070 2055977 2349688 2937110 3738140 4111954 5874220 7476280 8223908 10279885 11748440 16447816 20559770 41119540 82239080