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214000428 = 223107166667
BaseRepresentation
bin11001100000101…
…10001100101100
3112220200100101210
430300112030230
5414241003203
633122434420
75205654645
oct1460261454
9486610353
10214000428
11aa885764
125b802a10
1335449995
14205c86cc
1513bc2803
hexcc1632c

214000428 has 24 divisors (see below), whose sum is σ = 504004032. Its totient is φ = 70666384.

The previous prime is 214000427. The next prime is 214000433. The reversal of 214000428 is 824000412.

It is not an unprimeable number, because it can be changed into a prime (214000427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82050 + ... + 84617.

It is an arithmetic number, because the mean of its divisors is an integer number (21000168).

Almost surely, 2214000428 is an apocalyptic number.

It is an amenable number.

214000428 is an abundant number, since it is smaller than the sum of its proper divisors (290003604).

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

214000428 is a wasteful number, since it uses less digits than its factorization.

214000428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166781 (or 166779 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 214000428 is about 14628.7534670593. The cubic root of 214000428 is about 598.1428017334.

The spelling of 214000428 in words is "two hundred fourteen million, four hundred twenty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 107 214 321 428 642 1284 166667 333334 500001 666668 1000002 2000004 17833369 35666738 53500107 71333476 107000214 214000428