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6442602145 = 571071720321
BaseRepresentation
bin1100000000000001…
…00100111010100001
3121121222220002200021
412000000210322201
5101143301232040
62543143153441
7315440133430
oct60000447241
917558802607
106442602145
112806754391
1212b9745881
137b89a5425
14451903117
1527a91424a
hex180024ea1

6442602145 has 16 divisors (see below), whose sum is σ = 8918149248. Its totient is φ = 4376494080.

The previous prime is 6442602113. The next prime is 6442602161. The reversal of 6442602145 is 5412062446.

It is not a de Polignac number, because 6442602145 - 25 = 6442602113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6442602145.

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, 856416 + ... + 863905.

It is an arithmetic number, because the mean of its divisors is an integer number (557384328).

Almost surely, 26442602145 is an apocalyptic number.

It is an amenable number.

6442602145 is a deficient number, since it is larger than the sum of its proper divisors (2475547103).

6442602145 is a wasteful number, since it uses less digits than its factorization.

6442602145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720440.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 6442602145 is about 80265.8217736541. The cubic root of 6442602145 is about 1860.7460437489.

The spelling of 6442602145 in words is "six billion, four hundred forty-two million, six hundred two thousand, one hundred forty-five".

Divisors: 1 5 7 35 107 535 749 3745 1720321 8601605 12042247 60211235 184074347 920371735 1288520429 6442602145