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2664352445 = 51201443689
BaseRepresentation
bin1001111011001110…
…1100101010111101
320212200110010110012
42132303230222331
520424033234240
61120214153005
7123011423246
oct23663545275
96780403405
102664352445
111147a59477
12624352765
13335cb5011
141b3bd3ccd
15108d92b65
hex9ececabd

2664352445 has 8 divisors (see below), whose sum is σ = 3199892280. Its totient is φ = 2129702400.

The previous prime is 2664352441. The next prime is 2664352451. The reversal of 2664352445 is 5442534662.

It can be written as a sum of positive squares in 4 ways, for example, as 296459524 + 2367892921 = 17218^2 + 48661^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2664352445 - 22 = 2664352441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664352441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215840 + ... + 227849.

It is an arithmetic number, because the mean of its divisors is an integer number (399986535).

Almost surely, 22664352445 is an apocalyptic number.

It is an amenable number.

2664352445 is a deficient number, since it is larger than the sum of its proper divisors (535539835).

2664352445 is a wasteful number, since it uses less digits than its factorization.

2664352445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444895.

The product of its digits is 691200, while the sum is 41.

The square root of 2664352445 is about 51617.3657309243. The cubic root of 2664352445 is about 1386.3212846812.

The spelling of 2664352445 in words is "two billion, six hundred sixty-four million, three hundred fifty-two thousand, four hundred forty-five".

Divisors: 1 5 1201 6005 443689 2218445 532870489 2664352445