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8530407 = 331931637
BaseRepresentation
bin100000100010…
…100111100111
3121001101112000
4200202213213
54140433112
6502500343
7132335664
oct40424747
917041460
108530407
1148a7026
122a346b3
1319c89a2
1411c0a6b
15b377dc
hex8229e7

8530407 has 16 divisors (see below), whose sum is σ = 12710880. Its totient is φ = 5654016.

The previous prime is 8530391. The next prime is 8530409. The reversal of 8530407 is 7040358.

It is not a de Polignac number, because 8530407 - 24 = 8530391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8530409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4393 + ... + 6029.

It is an arithmetic number, because the mean of its divisors is an integer number (794430).

Almost surely, 28530407 is an apocalyptic number.

8530407 is a deficient number, since it is larger than the sum of its proper divisors (4180473).

8530407 is a wasteful number, since it uses less digits than its factorization.

8530407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 8530407 is about 2920.6860495438. The cubic root of 8530407 is about 204.3258201672.

The spelling of 8530407 in words is "eight million, five hundred thirty thousand, four hundred seven".

Divisors: 1 3 9 27 193 579 1637 1737 4911 5211 14733 44199 315941 947823 2843469 8530407