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215294214 = 23234793257
BaseRepresentation
bin11001101010100…
…10000100000110
3120000010002010210
430311102010012
5420103403324
633210300250
75222653632
oct1465220406
9500102123
10215294214
11100589803
1260127686
13357b0835
1420843dc2
1513d7ad29
hexcd52106

215294214 has 32 divisors (see below), whose sum is σ = 450385920. Its totient is φ = 68480192.

The previous prime is 215294207. The next prime is 215294221. The reversal of 215294214 is 412492512.

It is an interprime number because it is at equal distance from previous prime (215294207) and next prime (215294221).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64474 + ... + 67730.

It is an arithmetic number, because the mean of its divisors is an integer number (14074560).

Almost surely, 2215294214 is an apocalyptic number.

215294214 is an abundant number, since it is smaller than the sum of its proper divisors (235091706).

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

215294214 is a wasteful number, since it uses less digits than its factorization.

215294214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3764.

The product of its digits is 5760, while the sum is 30.

The square root of 215294214 is about 14672.9074828406. The cubic root of 215294214 is about 599.3457813670.

The spelling of 215294214 in words is "two hundred fifteen million, two hundred ninety-four thousand, two hundred fourteen".

Divisors: 1 2 3 6 23 46 69 138 479 958 1437 2874 3257 6514 9771 11017 19542 22034 33051 66102 74911 149822 224733 449466 1560103 3120206 4680309 9360618 35882369 71764738 107647107 215294214