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80993675 = 5271924359
BaseRepresentation
bin1001101001111…
…01110110001011
312122101220102202
410310331312023
5131213244200
612011550415
72002302110
oct464756613
9178356382
1080993675
114179a824
122315b40b
1313a1a769
14aa84907
15719d1d5
hex4d3dd8b

80993675 has 24 divisors (see below), whose sum is σ = 120825600. Its totient is φ = 52613280.

The previous prime is 80993663. The next prime is 80993677. The reversal of 80993675 is 57639908.

It is not a de Polignac number, because 80993675 - 24 = 80993659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80993677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8855 + ... + 15504.

It is an arithmetic number, because the mean of its divisors is an integer number (5034400).

Almost surely, 280993675 is an apocalyptic number.

80993675 is a deficient number, since it is larger than the sum of its proper divisors (39831925).

80993675 is a wasteful number, since it uses less digits than its factorization.

80993675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24395 (or 24390 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 80993675 is about 8999.6486042512. The cubic root of 80993675 is about 432.6636087885.

The spelling of 80993675 in words is "eighty million, nine hundred ninety-three thousand, six hundred seventy-five".

Divisors: 1 5 7 19 25 35 95 133 175 475 665 3325 24359 121795 170513 462821 608975 852565 2314105 3239747 4262825 11570525 16198735 80993675