Search a number
-
+
80875001 = 17193141197
BaseRepresentation
bin1001101001000…
…00110111111001
312122011212122102
410310200313321
5131201000001
612005233145
72001266114
oct464406771
9178155572
1080875001
1141719649
12231027b5
13139a873c
14aa5357b
157177e6b
hex4d20df9

80875001 has 32 divisors (see below), whose sum is σ = 95800320. Its totient is φ = 67737600.

The previous prime is 80874977. The next prime is 80875009. The reversal of 80875001 is 10057808.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80875001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80875009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410435 + ... + 410631.

It is an arithmetic number, because the mean of its divisors is an integer number (2993760).

Almost surely, 280875001 is an apocalyptic number.

It is an amenable number.

80875001 is a deficient number, since it is larger than the sum of its proper divisors (14925319).

80875001 is a wasteful number, since it uses less digits than its factorization.

80875001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 80875001 is about 8993.0529299009. The cubic root of 80875001 is about 432.4521889078.

The spelling of 80875001 in words is "eighty million, eight hundred seventy-five thousand, one".

Divisors: 1 17 19 31 41 197 323 527 589 697 779 1271 3349 3743 6107 8077 10013 13243 21607 24149 63631 103819 116033 137309 153463 250387 410533 1972561 2608871 4256579 4757353 80875001