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2240310021 = 36783134287
BaseRepresentation
bin1000010110001000…
…0110101100000101
312210010112112121020
42011202012230011
514042004410041
61010145341353
7106342215045
oct20542065405
95703475536
102240310021
11a4a662094
12526337859
132991a6341
14173771725
15d1a30866
hex85886b05

2240310021 has 16 divisors (see below), whose sum is σ = 3068212224. Its totient is φ = 1453511664.

The previous prime is 2240309957. The next prime is 2240310043. The reversal of 2240310021 is 1200130422.

It is not a de Polignac number, because 2240310021 - 26 = 2240309957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240310071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50461 + ... + 83826.

It is an arithmetic number, because the mean of its divisors is an integer number (191763264).

Almost surely, 22240310021 is an apocalyptic number.

It is an amenable number.

2240310021 is a deficient number, since it is larger than the sum of its proper divisors (827902203).

2240310021 is a wasteful number, since it uses less digits than its factorization.

2240310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134440.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2240310021 is about 47331.9133460713. The cubic root of 2240310021 is about 1308.4868843414.

Adding to 2240310021 its reverse (1200130422), we get a palindrome (3440440443).

The spelling of 2240310021 in words is "two billion, two hundred forty million, three hundred ten thousand, twenty-one".

Divisors: 1 3 67 83 201 249 5561 16683 134287 402861 8997229 11145821 26991687 33437463 746770007 2240310021