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8199429 = 37390449
BaseRepresentation
bin11111010001110100000101
3120102120111120
4133101310011
54044340204
6451424153
7126460020
oct37216405
916376446
108199429
1146a0397
1228b5059
131911144
1411361b7
15abe6d9
hex7d1d05

8199429 has 8 divisors (see below), whose sum is σ = 12494400. Its totient is φ = 4685376.

The previous prime is 8199427. The next prime is 8199449. The reversal of 8199429 is 9249918.

8199429 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 not a de Polignac number, because 8199429 - 21 = 8199427 is a prime.

8199429 is strictly pandigital in base 8.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8199427) 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, 195204 + ... + 195245.

It is an arithmetic number, because the mean of its divisors is an integer number (1561800).

Almost surely, 28199429 is an apocalyptic number.

It is an amenable number.

8199429 is a deficient number, since it is larger than the sum of its proper divisors (4294971).

8199429 is a wasteful number, since it uses less digits than its factorization.

8199429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390459.

The product of its digits is 46656, while the sum is 42.

The square root of 8199429 is about 2863.4645099948. The cubic root of 8199429 is about 201.6482867691.

The spelling of 8199429 in words is "eight million, one hundred ninety-nine thousand, four hundred twenty-nine".

Divisors: 1 3 7 21 390449 1171347 2733143 8199429