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7816340231 = 73792946227
BaseRepresentation
bin1110100011110001…
…11110001100000111
3202011201211020001122
413101320332030013
5112001440341411
63331335144155
7364460536640
oct72170761407
922151736048
107816340231
113351136117
12162181505b
1397748a4bb
1454213a6c7
1530b31c9db
hex1d1e3e307

7816340231 has 8 divisors (see below), whose sum is σ = 8956533120. Its totient is φ = 6682040568.

The previous prime is 7816340209. The next prime is 7816340261. The reversal of 7816340231 is 1320436187.

7816340231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7816340231 - 26 = 7816340167 is a prime.

It is a super-2 number, since 2×78163402312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7816340191 and 7816340200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7816340261) 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, 1470461 + ... + 1475766.

It is an arithmetic number, because the mean of its divisors is an integer number (1119566640).

Almost surely, 27816340231 is an apocalyptic number.

7816340231 is a deficient number, since it is larger than the sum of its proper divisors (1140192889).

7816340231 is a wasteful number, since it uses less digits than its factorization.

7816340231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946613.

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

The square root of 7816340231 is about 88410.0686064659. The cubic root of 7816340231 is about 1984.5763809963.

The spelling of 7816340231 in words is "seven billion, eight hundred sixteen million, three hundred forty thousand, two hundred thirty-one".

Divisors: 1 7 379 2653 2946227 20623589 1116620033 7816340231