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8530990 = 2513137479
BaseRepresentation
bin100000100010…
…110000101110
3121001102022121
4200202300232
54140442430
6502503154
7132340456
oct40426056
917042277
108530990
1148a7506
122a34aba
1319c9030
1411c0d66
15b37a7a
hex822c2e

8530990 has 32 divisors (see below), whose sum is σ = 16692480. Its totient is φ = 3120384.

The previous prime is 8530939. The next prime is 8531009. The reversal of 8530990 is 990358.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17571 + ... + 18049.

It is an arithmetic number, because the mean of its divisors is an integer number (521640).

Almost surely, 28530990 is an apocalyptic number.

8530990 is a deficient number, since it is larger than the sum of its proper divisors (8161490).

8530990 is a wasteful number, since it uses less digits than its factorization.

8530990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 8530990 is about 2920.7858531566. The cubic root of 8530990 is about 204.3304748587.

The spelling of 8530990 in words is "eight million, five hundred thirty thousand, nine hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 137 274 479 685 958 1370 1781 2395 3562 4790 6227 8905 12454 17810 31135 62270 65623 131246 328115 656230 853099 1706198 4265495 8530990