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8390049 = 36414363
BaseRepresentation
bin100000000000…
…010110100001
3120210020222120
4200000112201
54121440144
6455454453
7131212533
oct40002641
916706876
108390049
114810628
122987429
131979b35
141185853
15b0ae19
hex8005a1

8390049 has 8 divisors (see below), whose sum is σ = 11206752. Its totient is φ = 5583360.

The previous prime is 8390047. The next prime is 8390051. The reversal of 8390049 is 9400938.

It is an interprime number because it is at equal distance from previous prime (8390047) and next prime (8390051).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8390049 - 21 = 8390047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8390047) 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, 259 + ... + 4104.

It is an arithmetic number, because the mean of its divisors is an integer number (1400844).

Almost surely, 28390049 is an apocalyptic number.

It is an amenable number.

8390049 is a deficient number, since it is larger than the sum of its proper divisors (2816703).

8390049 is a wasteful number, since it uses less digits than its factorization.

8390049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5007.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 8390049 is about 2896.5581299190. The cubic root of 8390049 is about 203.1989685323.

The spelling of 8390049 in words is "eight million, three hundred ninety thousand, forty-nine".

Divisors: 1 3 641 1923 4363 13089 2796683 8390049