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418989213 = 33151102769
BaseRepresentation
bin11000111110010…
…100010010011101
31002012101212011000
4120332110102131
51324230123323
6105324220513
713245230616
oct3076242235
91065355130
10418989213
111a5565885
12b839a739
1368a5c916
143d908c0d
1526bb4e43
hex18f9449d

418989213 has 16 divisors (see below), whose sum is σ = 624841600. Its totient is φ = 277473600.

The previous prime is 418989173. The next prime is 418989217. The reversal of 418989213 is 312989814.

It is not a de Polignac number, because 418989213 - 213 = 418981021 is a prime.

It is a super-2 number, since 2×4189892132 = 351103921220718738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418989217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47308 + ... + 55461.

It is an arithmetic number, because the mean of its divisors is an integer number (39052600).

Almost surely, 2418989213 is an apocalyptic number.

It is an amenable number.

418989213 is a deficient number, since it is larger than the sum of its proper divisors (205852387).

418989213 is a wasteful number, since it uses less digits than its factorization.

418989213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102929 (or 102923 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 418989213 is about 20469.2259990455. The cubic root of 418989213 is about 748.2859898764.

The spelling of 418989213 in words is "four hundred eighteen million, nine hundred eighty-nine thousand, two hundred thirteen".

Divisors: 1 3 9 27 151 453 1359 4077 102769 308307 924921 2774763 15518119 46554357 139663071 418989213