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2689075643 = 19210337211
BaseRepresentation
bin1010000001001000…
…0000100110111011
320221101222012022012
42200102000212323
521001400410033
61122500120135
7123431523452
oct24022004673
96841865265
102689075643
11115aa05371
1263069604b
1333b160227
141b71cbb99
1510b128248
hexa04809bb

2689075643 has 12 divisors (see below), whose sum is σ = 2841196248. Its totient is φ = 2544726240.

The previous prime is 2689075621. The next prime is 2689075667. The reversal of 2689075643 is 3465709862.

It is a happy number.

It is not a de Polignac number, because 2689075643 - 26 = 2689075579 is a prime.

It is a super-3 number, since 3×26890756433 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2689075591 and 2689075600.

It is not an unprimeable number, because it can be changed into a prime (2689075673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 369308 + ... + 376518.

It is an arithmetic number, because the mean of its divisors is an integer number (236766354).

Almost surely, 22689075643 is an apocalyptic number.

2689075643 is a deficient number, since it is larger than the sum of its proper divisors (152120605).

2689075643 is a wasteful number, since it uses less digits than its factorization.

2689075643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8282 (or 8263 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The square root of 2689075643 is about 51856.2980070888. The cubic root of 2689075643 is about 1390.5960976919.

The spelling of 2689075643 in words is "two billion, six hundred eighty-nine million, seventy-five thousand, six hundred forty-three".

Divisors: 1 19 361 1033 7211 19627 137009 372913 2603171 7448963 141530297 2689075643