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2640325105 = 511160729873
BaseRepresentation
bin1001110101100000…
…0010100111110001
320211000020102010201
42131120002213301
520401410400410
61113555155201
7122300251555
oct23530024761
96730212121
102640325105
111135438370
126182a5b01
13331021762
141b093b865
15106be883a
hex9d6029f1

2640325105 has 16 divisors (see below), whose sum is σ = 3458692224. Its totient is φ = 1918977280.

The previous prime is 2640325099. The next prime is 2640325111. The reversal of 2640325105 is 5015230462.

It is an interprime number because it is at equal distance from previous prime (2640325099) and next prime (2640325111).

It is not a de Polignac number, because 2640325105 - 27 = 2640324977 is a prime.

It is a super-2 number, since 2×26403251052 = 13942633320186522050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73449 + ... + 103321.

It is an arithmetic number, because the mean of its divisors is an integer number (216168264).

Almost surely, 22640325105 is an apocalyptic number.

It is an amenable number.

2640325105 is a deficient number, since it is larger than the sum of its proper divisors (818367119).

2640325105 is a wasteful number, since it uses less digits than its factorization.

2640325105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31496.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2640325105 is about 51384.0938910087. The cubic root of 2640325105 is about 1382.1413763288.

Adding to 2640325105 its reverse (5015230462), we get a palindrome (7655555567).

The spelling of 2640325105 in words is "two billion, six hundred forty million, three hundred twenty-five thousand, one hundred five".

Divisors: 1 5 11 55 1607 8035 17677 29873 88385 149365 328603 1643015 48005911 240029555 528065021 2640325105