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8034021 = 322234003
BaseRepresentation
bin11110101001011011100101
3120010011121100
4132221123211
54024042041
6444110313
7125200542
oct36513345
916104540
108034021
114598096
122835399
131883a78
1410d1bc9
15a8a6b6
hex7a96e5

8034021 has 12 divisors (see below), whose sum is σ = 11659648. Its totient is φ = 5330664.

The previous prime is 8033989. The next prime is 8034023. The reversal of 8034021 is 1204308.

It is a happy number.

It is not a de Polignac number, because 8034021 - 25 = 8033989 is a prime.

It is a Duffinian number.

8034021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8033985 and 8034003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8034023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6 + ... + 4008.

Almost surely, 28034021 is an apocalyptic number.

It is an amenable number.

8034021 is a deficient number, since it is larger than the sum of its proper divisors (3625627).

8034021 is a wasteful number, since it uses less digits than its factorization.

8034021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232 (or 4229 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 8034021 is about 2834.4348643072. The cubic root of 8034021 is about 200.2831073953.

Adding to 8034021 its reverse (1204308), we get a palindrome (9238329).

The spelling of 8034021 in words is "eight million, thirty-four thousand, twenty-one".

Divisors: 1 3 9 223 669 2007 4003 12009 36027 892669 2678007 8034021