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2207340890 = 25421524309
BaseRepresentation
bin1000001110010001…
…0101100101011010
312200211111112110022
42003210111211122
514010034402030
61003010550442
7105462042116
oct20344254532
95624445408
102207340890
11a32a93977
12517298422
13292401a91
1416d22c746
15cdbbbde5
hex8391595a

2207340890 has 16 divisors (see below), whose sum is σ = 3982658760. Its totient is φ = 880837440.

The previous prime is 2207340881. The next prime is 2207340893. The reversal of 2207340890 is 980437022.

It can be written as a sum of positive squares in 4 ways, for example, as 1690278769 + 517062121 = 41113^2 + 22739^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2207340890.

It is not an unprimeable number, because it can be changed into a prime (2207340893) 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, 257945 + ... + 266364.

Almost surely, 22207340890 is an apocalyptic number.

2207340890 is a deficient number, since it is larger than the sum of its proper divisors (1775317870).

2207340890 is a wasteful number, since it uses less digits than its factorization.

2207340890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524737.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 2207340890 is about 46982.3465782628. The cubic root of 2207340890 is about 1302.0364315673.

The spelling of 2207340890 in words is "two billion, two hundred seven million, three hundred forty thousand, eight hundred ninety".

Divisors: 1 2 5 10 421 842 2105 4210 524309 1048618 2621545 5243090 220734089 441468178 1103670445 2207340890