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2664372105 = 32564499181
BaseRepresentation
bin1001111011001111…
…0001011110001001
320212200111010102100
42132303301132021
520424034401410
61120214424013
7123011534463
oct23663613611
96780433370
102664372105
111147a7221a
12624362009
13335cc0c55
141b3bdb133
15108d988c0
hex9ecf1789

2664372105 has 24 divisors (see below), whose sum is σ = 4619464200. Its totient is φ = 1420623360.

The previous prime is 2664372079. The next prime is 2664372131. The reversal of 2664372105 is 5012734662.

2664372105 is a `hidden beast` number, since 2 + 6 + 6 + 437 + 210 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (2664372079) and next prime (2664372131).

It can be written as a sum of positive squares in 4 ways, for example, as 1109489481 + 1554882624 = 33309^2 + 39432^2 .

It is not a de Polignac number, because 2664372105 - 210 = 2664371081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2664372105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285615 + ... + 294795.

It is an arithmetic number, because the mean of its divisors is an integer number (192477675).

Almost surely, 22664372105 is an apocalyptic number.

It is an amenable number.

2664372105 is a deficient number, since it is larger than the sum of its proper divisors (1955092095).

2664372105 is a wasteful number, since it uses less digits than its factorization.

2664372105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15641 (or 15638 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 2664372105 is about 51617.5561703574. The cubic root of 2664372105 is about 1386.3246945165.

The spelling of 2664372105 in words is "two billion, six hundred sixty-four million, three hundred seventy-two thousand, one hundred five".

Divisors: 1 3 5 9 15 45 6449 9181 19347 27543 32245 45905 58041 82629 96735 137715 290205 413145 59208269 177624807 296041345 532874421 888124035 2664372105