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80839752 = 2337796091
BaseRepresentation
bin1001101000110…
…00010001001000
312122010002021220
410310120101020
5131143333002
612004402040
72001061260
oct464302110
9178102256
1080839752
11416a5114
12230a6320
1313995696
14aa447a0
15716c7bc
hex4d18448

80839752 has 64 divisors (see below), whose sum is σ = 233932800. Its totient is φ = 22800960.

The previous prime is 80839747. The next prime is 80839753. The reversal of 80839752 is 25793808.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (80839753) 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, 10227 + ... + 16317.

It is an arithmetic number, because the mean of its divisors is an integer number (3655200).

Almost surely, 280839752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80839752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116966400).

80839752 is an abundant number, since it is smaller than the sum of its proper divisors (153093048).

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

80839752 is a wasteful number, since it uses less digits than its factorization.

80839752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6186 (or 6182 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 80839752 is about 8991.0929257794. The cubic root of 80839752 is about 432.3893523404.

The spelling of 80839752 in words is "eighty million, eight hundred thirty-nine thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 79 84 158 168 237 316 474 553 632 948 1106 1659 1896 2212 3318 4424 6091 6636 12182 13272 18273 24364 36546 42637 48728 73092 85274 127911 146184 170548 255822 341096 481189 511644 962378 1023288 1443567 1924756 2887134 3368323 3849512 5774268 6736646 10104969 11548536 13473292 20209938 26946584 40419876 80839752