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2666960290 = 25266696029
BaseRepresentation
bin1001111011110110…
…1001010110100010
320212212100121202001
42132331221112202
520430220212130
61120350114214
7123042534301
oct23675512642
96785317661
102666960290
11114947a815
126251ab96a
133366b9017
141b42b2438
1510920a6ca
hex9ef695a2

2666960290 has 8 divisors (see below), whose sum is σ = 4800528540. Its totient is φ = 1066784112.

The previous prime is 2666960273. The next prime is 2666960293. The reversal of 2666960290 is 920696662.

It can be written as a sum of positive squares in 2 ways, for example, as 2492905041 + 174055249 = 49929^2 + 13193^2 .

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

It is a super-2 number, since 2×26669602902 = 14225354376873768200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2666960290.

It is not an unprimeable number, because it can be changed into a prime (2666960293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133348005 + ... + 133348024.

Almost surely, 22666960290 is an apocalyptic number.

2666960290 is a deficient number, since it is larger than the sum of its proper divisors (2133568250).

2666960290 is a wasteful number, since it uses less digits than its factorization.

2666960290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266696036.

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 2666960290 is about 51642.6208668770. The cubic root of 2666960290 is about 1386.7734435955.

The spelling of 2666960290 in words is "two billion, six hundred sixty-six million, nine hundred sixty thousand, two hundred ninety".

Divisors: 1 2 5 10 266696029 533392058 1333480145 2666960290