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8069399 = 132512473
BaseRepresentation
bin11110110010000100010111
3120011222010122
4132302010113
54031210044
6444542155
7125405642
oct36620427
916158118
108069399
114611728
12285195b
131896bc0
141100a59
15a95dee
hex7b2117

8069399 has 8 divisors (see below), whose sum is σ = 8728272. Its totient is φ = 7416000.

The previous prime is 8069381. The next prime is 8069417. The reversal of 8069399 is 9939608.

It is an interprime number because it is at equal distance from previous prime (8069381) and next prime (8069417).

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 8069399 - 28 = 8069143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8069359) 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, 2027 + ... + 4499.

It is an arithmetic number, because the mean of its divisors is an integer number (1091034).

Almost surely, 28069399 is an apocalyptic number.

8069399 is a deficient number, since it is larger than the sum of its proper divisors (658873).

8069399 is a wasteful number, since it uses less digits than its factorization.

8069399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 8069399 is about 2840.6687592889. The cubic root of 8069399 is about 200.5766607141.

The spelling of 8069399 in words is "eight million, sixty-nine thousand, three hundred ninety-nine".

Divisors: 1 13 251 2473 3263 32149 620723 8069399