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3428786249 = 72321296809
BaseRepresentation
bin1100110001011111…
…0010000001001001
322211221212101111022
43030113302001021
524010232124444
61324122442225
7150653126240
oct31427620111
98757771438
103428786249
1114aa507949
127b8363375
13428494505
14247541957
151510419ee
hexcc5f2049

3428786249 has 8 divisors (see below), whose sum is σ = 4088987520. Its totient is φ = 2811178656.

The previous prime is 3428786183. The next prime is 3428786299. The reversal of 3428786249 is 9426878243.

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 3428786249 - 224 = 3412009033 is a prime.

It is a super-3 number, since 3×34287862493 (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3428786249.

It is not an unprimeable number, because it can be changed into a prime (3428786299) 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, 10648244 + ... + 10648565.

It is an arithmetic number, because the mean of its divisors is an integer number (511123440).

Almost surely, 23428786249 is an apocalyptic number.

It is an amenable number.

3428786249 is a deficient number, since it is larger than the sum of its proper divisors (660201271).

3428786249 is a wasteful number, since it uses less digits than its factorization.

3428786249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21296839.

The product of its digits is 4644864, while the sum is 53.

The square root of 3428786249 is about 58555.8387268084. The cubic root of 3428786249 is about 1507.9263744669.

The spelling of 3428786249 in words is "three billion, four hundred twenty-eight million, seven hundred eighty-six thousand, two hundred forty-nine".

Divisors: 1 7 23 161 21296809 149077663 489826607 3428786249