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390227814 = 233193112269
BaseRepresentation
bin10111010000100…
…110011101100110
31000012021121221000
4113100212131212
51244344242224
6102415534130
712445611264
oct2720463546
91005247830
10390227814
11190300a29
12aa82a346
1362acc642
1439b7d434
15243d30c9
hex17426766

390227814 has 64 divisors (see below), whose sum is σ = 942336000. Its totient is φ = 119244960.

The previous prime is 390227807. The next prime is 390227819. The reversal of 390227814 is 418722093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390227819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25672 + ... + 37940.

It is an arithmetic number, because the mean of its divisors is an integer number (14724000).

Almost surely, 2390227814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390227814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471168000).

390227814 is an abundant number, since it is smaller than the sum of its proper divisors (552108186).

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

390227814 is a wasteful number, since it uses less digits than its factorization.

390227814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12330 (or 12324 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 390227814 is about 19754.1847212179. The cubic root of 390227814 is about 730.7565896977.

The spelling of 390227814 in words is "three hundred ninety million, two hundred twenty-seven thousand, eight hundred fourteen".

Divisors: 1 2 3 6 9 18 19 27 31 38 54 57 62 93 114 171 186 279 342 513 558 589 837 1026 1178 1674 1767 3534 5301 10602 12269 15903 24538 31806 36807 73614 110421 220842 233111 331263 380339 466222 662526 699333 760678 1141017 1398666 2097999 2282034 3423051 4195998 6293997 6846102 7226441 10269153 12587994 14452882 20538306 21679323 43358646 65037969 130075938 195113907 390227814