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80608638 = 23116718229
BaseRepresentation
bin1001100110111…
…11110101111110
312121200100021010
410303133311332
5131113434023
611555420050
71666106415
oct463376576
9177610233
1080608638
1141557510
1222bb4626
1313914426
14a9c447c
157124093
hex4cdfd7e

80608638 has 32 divisors (see below), whose sum is σ = 178508160. Its totient is φ = 24060960.

The previous prime is 80608589. The next prime is 80608639. The reversal of 80608638 is 83680608.

It is a junction number, because it is equal to n+sod(n) for n = 80608596 and 80608605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80608639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4693 + ... + 13536.

It is an arithmetic number, because the mean of its divisors is an integer number (5578380).

Almost surely, 280608638 is an apocalyptic number.

80608638 is an abundant number, since it is smaller than the sum of its proper divisors (97899522).

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

80608638 is a wasteful number, since it uses less digits than its factorization.

80608638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18312.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 80608638 is about 8978.2313403031. The cubic root of 80608638 is about 431.9769042008.

The spelling of 80608638 in words is "eighty million, six hundred eight thousand, six hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 66 67 134 201 402 737 1474 2211 4422 18229 36458 54687 109374 200519 401038 601557 1203114 1221343 2442686 3664029 7328058 13434773 26869546 40304319 80608638