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7961345 = 57227467
BaseRepresentation
bin11110010111101100000001
3112222110220122
4132113230001
54014230340
6442350025
7124445630
oct36275401
915873818
107961345
114548527
1227bb315
131859972
1410b3517
15a73db5
hex797b01

7961345 has 8 divisors (see below), whose sum is σ = 10918464. Its totient is φ = 5459184.

The previous prime is 7961333. The next prime is 7961347. The reversal of 7961345 is 5431697.

7961345 is digitally balanced in base 8, 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 a cyclic number.

It is not a de Polignac number, because 7961345 - 26 = 7961281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 227467 = 7961345 / (7 + 9 + 6 + 1 + 3 + 4 + 5).

It is a d-powerful number, because it can be written as 78 + 93 + 6 + 1 + 311 + 48 + 59 .

It is a Duffinian number.

7961345 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (7961347) 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, 113699 + ... + 113768.

It is an arithmetic number, because the mean of its divisors is an integer number (1364808).

Almost surely, 27961345 is an apocalyptic number.

It is an amenable number.

7961345 is a deficient number, since it is larger than the sum of its proper divisors (2957119).

7961345 is a wasteful number, since it uses less digits than its factorization.

7961345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227479.

The product of its digits is 22680, while the sum is 35.

The square root of 7961345 is about 2821.5855471702. The cubic root of 7961345 is about 199.6773547802.

The spelling of 7961345 in words is "seven million, nine hundred sixty-one thousand, three hundred forty-five".

Divisors: 1 5 7 35 227467 1137335 1592269 7961345