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2130355490 = 25415195989
BaseRepresentation
bin111111011111010…
…1010010100100010
312111110122021100012
41332332222110202
513330332333430
6551220524522
7103535502644
oct17676522442
95443567305
102130355490
119a359167a
124b5550742
1327c4888a3
14162d0c894
15c7061695
hex7efaa522

2130355490 has 16 divisors (see below), whose sum is σ = 3928168440. Its totient is φ = 831358080.

The previous prime is 2130355441. The next prime is 2130355501. The reversal of 2130355490 is 945530312.

It can be written as a sum of positive squares in 4 ways, for example, as 1475558569 + 654796921 = 38413^2 + 25589^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2597585 + ... + 2598404.

Almost surely, 22130355490 is an apocalyptic number.

2130355490 is a deficient number, since it is larger than the sum of its proper divisors (1797812950).

2130355490 is a wasteful number, since it uses less digits than its factorization.

2130355490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196037.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 2130355490 is about 46155.7741783192. The cubic root of 2130355490 is about 1286.7199263691.

The spelling of 2130355490 in words is "two billion, one hundred thirty million, three hundred fifty-five thousand, four hundred ninety".

Divisors: 1 2 5 10 41 82 205 410 5195989 10391978 25979945 51959890 213035549 426071098 1065177745 2130355490