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8069436 = 223374717
BaseRepresentation
bin11110110010000100111100
3120011222012000
4132302010330
54031210221
6444542300
7125406024
oct36620474
916158160
108069436
114611761
122851990
131896c1b
141100a84
15a95e26
hex7b213c

8069436 has 24 divisors (see below), whose sum is σ = 20921040. Its totient is φ = 2689776.

The previous prime is 8069431. The next prime is 8069459. The reversal of 8069436 is 6349608.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 8069436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8069431) 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, 37251 + ... + 37466.

It is an arithmetic number, because the mean of its divisors is an integer number (871710).

Almost surely, 28069436 is an apocalyptic number.

It is an amenable number.

8069436 is an abundant number, since it is smaller than the sum of its proper divisors (12851604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8069436 is a wasteful number, since it uses less digits than its factorization.

8069436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74730 (or 74722 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 8069436 is about 2840.6752718324. The cubic root of 8069436 is about 200.5769672766.

The spelling of 8069436 in words is "eight million, sixty-nine thousand, four hundred thirty-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 74717 149434 224151 298868 448302 672453 896604 1344906 2017359 2689812 4034718 8069436