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2630490397 = 19259123503
BaseRepresentation
bin1001110011001010…
…0001100100011101
320210022201202110021
42130302201210131
520341401143042
61113004312141
7122120541133
oct23462414435
96708652407
102630490397
11112a930407
12614b42651
1332bc8a1c2
141ad4db753
15105e04867
hex9cca191d

2630490397 has 12 divisors (see below), whose sum is σ = 2823301440. Its totient is φ = 2449785672.

The previous prime is 2630490367. The next prime is 2630490403. The reversal of 2630490397 is 7930940362.

It is not a de Polignac number, because 2630490397 - 211 = 2630488349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2630490367) 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, 40453 + ... + 83050.

It is an arithmetic number, because the mean of its divisors is an integer number (235275120).

Almost surely, 22630490397 is an apocalyptic number.

It is an amenable number.

2630490397 is a deficient number, since it is larger than the sum of its proper divisors (192811043).

2630490397 is a wasteful number, since it uses less digits than its factorization.

2630490397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123600 (or 123581 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 2630490397 is about 51288.3066302642. The cubic root of 2630490397 is about 1380.4231701257.

The spelling of 2630490397 in words is "two billion, six hundred thirty million, four hundred ninety thousand, three hundred ninety-seven".

Divisors: 1 19 59 361 1121 21299 123503 2346557 7286677 44584583 138446863 2630490397