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7400340340 = 225370017017
BaseRepresentation
bin1101110010001100…
…00011101101110100
3201002202001020111021
412321012003231310
5110123441342330
63222154550524
7351246566161
oct67106035564
921082036437
107400340340
113158332258
121526438444
1390c236413
14502bad068
152d4a4867a
hex1b9183b74

7400340340 has 12 divisors (see below), whose sum is σ = 15540714756. Its totient is φ = 2960136128.

The previous prime is 7400340317. The next prime is 7400340349. The reversal of 7400340340 is 430430047.

It can be written as a sum of positive squares in 2 ways, for example, as 5134009104 + 2266331236 = 71652^2 + 47606^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7400340349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185008489 + ... + 185008528.

It is an arithmetic number, because the mean of its divisors is an integer number (1295059563).

Almost surely, 27400340340 is an apocalyptic number.

It is an amenable number.

7400340340 is an abundant number, since it is smaller than the sum of its proper divisors (8140374416).

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

7400340340 is a wasteful number, since it uses less digits than its factorization.

7400340340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370017026 (or 370017024 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 7400340340 is about 86025.2308337502. The cubic root of 7400340340 is about 1948.7250346424.

Adding to 7400340340 its reverse (430430047), we get a palindrome (7830770387).

The spelling of 7400340340 in words is "seven billion, four hundred million, three hundred forty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 370017017 740034034 1480068068 1850085085 3700170170 7400340340