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7945413 = 37378353
BaseRepresentation
bin11110010011110011000101
3112221200001120
4132103303011
54013223123
6442144153
7124351320
oct36236305
915850046
107945413
114537563
1227b2059
131852638
1410ab7b7
15a6e2e3
hex793cc5

7945413 has 8 divisors (see below), whose sum is σ = 12107328. Its totient is φ = 4540224.

The previous prime is 7945387. The next prime is 7945423. The reversal of 7945413 is 3145497.

7945413 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 7945413 - 25 = 7945381 is a prime.

It is an Ulam number.

It is a Curzon number.

7945413 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7945423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189156 + ... + 189197.

It is an arithmetic number, because the mean of its divisors is an integer number (1513416).

Almost surely, 27945413 is an apocalyptic number.

It is an amenable number.

7945413 is a deficient number, since it is larger than the sum of its proper divisors (4161915).

7945413 is a wasteful number, since it uses less digits than its factorization.

7945413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378363.

The product of its digits is 15120, while the sum is 33.

The square root of 7945413 is about 2818.7608979834. The cubic root of 7945413 is about 199.5440697612.

The spelling of 7945413 in words is "seven million, nine hundred forty-five thousand, four hundred thirteen".

Divisors: 1 3 7 21 378353 1135059 2648471 7945413