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2240310331 = 7323283979
BaseRepresentation
bin1000010110001000…
…0110110000111011
312210010112120000201
42011202012300323
514042004412311
61010145343031
7106342216000
oct20542066073
95703476021
102240310331
11a4a662346
12526337a77
132991a651c
141737718a7
15d1a309c1
hex85886c3b

2240310331 has 16 divisors (see below), whose sum is σ = 2726208000. Its totient is φ = 1836769704.

The previous prime is 2240310329. The next prime is 2240310343. The reversal of 2240310331 is 1330130422.

It is not a de Polignac number, because 2240310331 - 21 = 2240310329 is a prime.

It is a super-2 number, since 2×22403103312 = 10037980758370659122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2240310299 and 2240310308.

It is not an unprimeable number, because it can be changed into a prime (2240310301) 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, 134101 + ... + 149878.

It is an arithmetic number, because the mean of its divisors is an integer number (170388000).

Almost surely, 22240310331 is an apocalyptic number.

2240310331 is a deficient number, since it is larger than the sum of its proper divisors (485897669).

2240310331 is an equidigital number, since it uses as much as digits as its factorization.

2240310331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284023 (or 284009 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2240310331 is about 47331.9166208173. The cubic root of 2240310331 is about 1308.4869446948.

Adding to 2240310331 its reverse (1330130422), we get a palindrome (3570440753).

The spelling of 2240310331 in words is "two billion, two hundred forty million, three hundred ten thousand, three hundred thirty-one".

Divisors: 1 7 23 49 161 343 1127 7889 283979 1987853 6531517 13914971 45720619 97404797 320044333 2240310331