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7840713 = 35414831
BaseRepresentation
bin11101111010001111001001
3112202100102210
4131322033021
54001400323
6440015333
7123434136
oct35721711
915670383
107840713
114475931
122761549
131816a9a
14108158d
15a4d293
hex77a3c9

7840713 has 8 divisors (see below), whose sum is σ = 10475776. Its totient is φ = 5216400.

The previous prime is 7840709. The next prime is 7840727. The reversal of 7840713 is 3170487.

It is a happy number.

7840713 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 7840713 - 22 = 7840709 is a prime.

It is a super-2 number, since 2×78407132 = 122953560696738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7840733) 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, 793 + ... + 4038.

It is an arithmetic number, because the mean of its divisors is an integer number (1309472).

Almost surely, 27840713 is an apocalyptic number.

It is an amenable number.

7840713 is a deficient number, since it is larger than the sum of its proper divisors (2635063).

7840713 is a wasteful number, since it uses less digits than its factorization.

7840713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5375.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 7840713 is about 2800.1273185339. The cubic root of 7840713 is about 198.6636997265.

The spelling of 7840713 in words is "seven million, eight hundred forty thousand, seven hundred thirteen".

Divisors: 1 3 541 1623 4831 14493 2613571 7840713