Search a number
2630071 = 31372293
BaseRepresentation
bin1010000010000110110111
311221121210001
422002012313
51133130241
6132212131
731232563
oct12020667
94847701
102630071
111537014
12a6a047
13711172
144c66a3
1536e431
hex2821b7

2630071 has 8 divisors (see below), whose sum is σ = 2789504. Its totient is φ = 2475360.

The previous prime is 2630041. The next prime is 2630077. The reversal of 2630071 is 1700362.

2630071 is a nontrivial binomial coefficient, being equal to C(2294, 2).

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

It is a 5-Lehmer number, since φ(2630071) divides (2630071-1)5.

It is a cyclic number.

It is not a de Polignac number, because 2630071 - 27 = 2629943 is a prime.

It is a deceptive number, since it divides R2630070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2630077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 2293.

It is an arithmetic number, because the mean of its divisors is an integer number (348688).

22630071 is an apocalyptic number.

2630071 is the 2293-rd triangular number and also the 1147-th hexagonal number.

2630071 is the 765-th centered nonagonal number.

2630071 is a deficient number, since it is larger than the sum of its proper divisors (159433).

2630071 is a wasteful number, since it uses less digits than its factorization.

2630071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 2630071 is about 1621.7493641127. The cubic root of 2630071 is about 138.0349802804.

The spelling of 2630071 in words is "two million, six hundred thirty thousand, seventy-one".

Divisors: 1 31 37 1147 2293 71083 84841 2630071