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6442001097 = 3717314313537
BaseRepresentation
bin1011111111111100…
…10010001011001001
3121121221202120012020
411333332102023021
5101143123013342
62543122235053
7315432051210
oct57776221311
917557676166
106442001097
112806383854
1212b94b5a89
137b882498c
144517c8077
1527a8460ec
hex17ff922c9

6442001097 has 64 divisors (see below), whose sum is σ = 10979426304. Its totient is φ = 3274629120.

The previous prime is 6442000991. The next prime is 6442001099. The reversal of 6442001097 is 7901002446.

It is a happy number.

It is not a de Polignac number, because 6442001097 - 27 = 6442000969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6442001099) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 469113 + ... + 482649.

It is an arithmetic number, because the mean of its divisors is an integer number (171553536).

Almost surely, 26442001097 is an apocalyptic number.

It is an amenable number.

6442001097 is a deficient number, since it is larger than the sum of its proper divisors (4537425207).

6442001097 is a wasteful number, since it uses less digits than its factorization.

6442001097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13638.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 6442001097 is about 80262.0775771472. The cubic root of 6442001097 is about 1860.6881772511.

The spelling of 6442001097 in words is "six billion, four hundred forty-two million, one thousand, ninety-seven".

Divisors: 1 3 7 17 21 31 43 51 93 119 129 217 301 357 527 651 731 903 1333 1581 2193 3689 3999 5117 9331 11067 13537 15351 22661 27993 40611 67983 94759 158627 230129 284277 419647 475881 582091 690387 1258941 1610903 1746273 2937529 4074637 4832709 7133999 8812587 9895547 12223911 18044821 21401997 29686641 49937993 54134463 69268829 126313747 149813979 207806487 306761957 378941241 920285871 2147333699 6442001097