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8497900105 = 51699580021
BaseRepresentation
bin1111110101000001…
…11010101001001001
3210221020022001102221
413322200322221021
5114400430300410
63523123254041
7420404646652
oct77240725111
923836261387
108497900105
113670930142
121791b1a321
13a55741476
145a8874529
1534b09b4da
hex1fa83aa49

8497900105 has 4 divisors (see below), whose sum is σ = 10197480132. Its totient is φ = 6798320080.

The previous prime is 8497900093. The next prime is 8497900111. The reversal of 8497900105 is 5010097948.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5320097721 + 3177802384 = 72939^2 + 56372^2 .

It is a de Polignac number, because none of the positive numbers 2k-8497900105 is a prime.

It is a super-2 number, since 2×84979001052 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849790006 + ... + 849790015.

It is an arithmetic number, because the mean of its divisors is an integer number (2549370033).

Almost surely, 28497900105 is an apocalyptic number.

It is an amenable number.

8497900105 is a deficient number, since it is larger than the sum of its proper divisors (1699580027).

8497900105 is a wasteful number, since it uses less digits than its factorization.

8497900105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699580026.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 8497900105 is about 92184.0555898904. The cubic root of 8497900105 is about 2040.6594773694.

The spelling of 8497900105 in words is "eight billion, four hundred ninety-seven million, nine hundred thousand, one hundred five".

Divisors: 1 5 1699580021 8497900105