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990900214 = 223193239467
BaseRepresentation
bin111011000011111…
…110111111110110
32120001112221112221
4323003332333312
54012132301324
6242154232554
733361340623
oct7303767766
92501487487
10990900214
11469378aa7
12237a2575a
1312a3a22b5
149585d34a
155bed50e4
hex3b0feff6

990900214 has 32 divisors (see below), whose sum is σ = 1568885760. Its totient is φ = 468475392.

The previous prime is 990900161. The next prime is 990900227. The reversal of 990900214 is 412009099.

It is a super-3 number, since 3×9909002143 (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 990900214.

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, 2121609 + ... + 2122075.

It is an arithmetic number, because the mean of its divisors is an integer number (49027680).

Almost surely, 2990900214 is an apocalyptic number.

990900214 is a deficient number, since it is larger than the sum of its proper divisors (577985546).

990900214 is a wasteful number, since it uses less digits than its factorization.

990900214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 990900214 is about 31478.5675341176. The cubic root of 990900214 is about 996.9574905241.

The spelling of 990900214 in words is "nine hundred ninety million, nine hundred thousand, two hundred fourteen".

Divisors: 1 2 23 46 193 239 386 467 478 934 4439 5497 8878 10741 10994 21482 46127 90131 92254 111613 180262 223226 1060921 2073013 2121842 2567099 4146026 5134198 21541309 43082618 495450107 990900214