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214286709 = 37131395647
BaseRepresentation
bin11001100010111…
…00000101110101
3112221012220002210
430301130011311
5414324133314
633132524033
75211256410
oct1461340565
9487186083
10214286709
11aaa6085a
125b920619
133551a090
1420660b77
1513c2c559
hexcc5c175

214286709 has 32 divisors (see below), whose sum is σ = 354242560. Its totient is φ = 112197312.

The previous prime is 214286707. The next prime is 214286711. The reversal of 214286709 is 907682412.

214286709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (214286707) and next prime (214286711).

It is not a de Polignac number, because 214286709 - 21 = 214286707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214286707) 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, 35124 + ... + 40770.

It is an arithmetic number, because the mean of its divisors is an integer number (11070080).

Almost surely, 2214286709 is an apocalyptic number.

It is an amenable number.

214286709 is a deficient number, since it is larger than the sum of its proper divisors (139955851).

214286709 is a wasteful number, since it uses less digits than its factorization.

214286709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5809.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 214286709 is about 14638.5350701496. The cubic root of 214286709 is about 598.4094065245.

The spelling of 214286709 in words is "two hundred fourteen million, two hundred eighty-six thousand, seven hundred nine".

Divisors: 1 3 7 13 21 39 91 139 273 417 973 1807 2919 5421 5647 12649 16941 37947 39529 73411 118587 220233 513877 784933 1541631 2354799 5494531 10204129 16483593 30612387 71428903 214286709