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2231300040 = 233518594167
BaseRepresentation
bin1000010011111110…
…1110111111001000
312202111120210020020
42010333232333020
514032203100130
61005224300440
7106202510634
oct20477567710
95674523206
102231300040
11a45568822
12523311720
132973702a8
141724a7dc4
15d0d50e10
hex84feefc8

2231300040 has 32 divisors (see below), whose sum is σ = 6693900480. Its totient is φ = 595013312.

The previous prime is 2231300033. The next prime is 2231300041. The reversal of 2231300040 is 400031322.

It is a super-3 number, since 3×22313000403 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 2231299992 and 2231300019.

It is not an unprimeable number, because it can be changed into a prime (2231300041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9296964 + ... + 9297203.

It is an arithmetic number, because the mean of its divisors is an integer number (209184390).

Almost surely, 22231300040 is an apocalyptic number.

2231300040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231300040 is an abundant number, since it is smaller than the sum of its proper divisors (4462600440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231300040 is a wasteful number, since it uses less digits than its factorization.

2231300040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18594181 (or 18594177 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2231300040 is about 47236.6387457872. The cubic root of 2231300040 is about 1306.7303890322.

Adding to 2231300040 its reverse (400031322), we get a palindrome (2631331362).

The spelling of 2231300040 in words is "two billion, two hundred thirty-one million, three hundred thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 18594167 37188334 55782501 74376668 92970835 111565002 148753336 185941670 223130004 278912505 371883340 446260008 557825010 743766680 1115650020 2231300040