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402208230 = 23513406941
BaseRepresentation
bin10111111110010…
…011010111100110
31001000211021222010
4113332103113212
51310431130410
6103524415050
712652466514
oct2776232746
91030737863
10402208230
11197043aa6
12b2847486
1365435748
143b5bb4b4
152549cc20
hex17f935e6

402208230 has 16 divisors (see below), whose sum is σ = 965299824. Its totient is φ = 107255520.

The previous prime is 402208217. The next prime is 402208259. The reversal of 402208230 is 32802204.

It is a junction number, because it is equal to n+sod(n) for n = 402208197 and 402208206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6703441 + ... + 6703500.

It is an arithmetic number, because the mean of its divisors is an integer number (60331239).

Almost surely, 2402208230 is an apocalyptic number.

402208230 is an abundant number, since it is smaller than the sum of its proper divisors (563091594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402208230 is a wasteful number, since it uses less digits than its factorization.

402208230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13406951.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 402208230 is about 20055.1297677178. The cubic root of 402208230 is about 738.1596771139.

The spelling of 402208230 in words is "four hundred two million, two hundred eight thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 13406941 26813882 40220823 67034705 80441646 134069410 201104115 402208230