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126396641 = 7311992927
BaseRepresentation
bin1111000100010…
…10100011100001
322210211121121002
413202022203201
5224324143031
620313041345
73063232220
oct742124341
9283747532
10126396641
1165390738
12363b6255
1320256617
1412b02cb7
15b16accb
hex788a8e1

126396641 has 16 divisors (see below), whose sum is σ = 149913600. Its totient is φ = 104282640.

The previous prime is 126396637. The next prime is 126396659. The reversal of 126396641 is 146693621.

It is not a de Polignac number, because 126396641 - 22 = 126396637 is a prime.

It is a super-2 number, since 2×1263966412 = 31952221712165762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 126396595 and 126396604.

It is not an unprimeable number, because it can be changed into a prime (126396631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41720 + ... + 44646.

It is an arithmetic number, because the mean of its divisors is an integer number (9369600).

Almost surely, 2126396641 is an apocalyptic number.

It is an amenable number.

126396641 is a deficient number, since it is larger than the sum of its proper divisors (23516959).

126396641 is a wasteful number, since it uses less digits than its factorization.

126396641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164.

The product of its digits is 46656, while the sum is 38.

The square root of 126396641 is about 11242.6260722306. The cubic root of 126396641 is about 501.8552952442.

The spelling of 126396641 in words is "one hundred twenty-six million, three hundred ninety-six thousand, six hundred forty-one".

Divisors: 1 7 31 199 217 1393 2927 6169 20489 43183 90737 582473 635159 4077311 18056663 126396641