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214932090 = 23547914957
BaseRepresentation
bin11001100111110…
…01101001111010
3112222102200101210
430303321221322
5420010311330
633154423550
75216615112
oct1463715172
9488380353
10214932090
1110036172a
125bb91bb6
13356b4a69
142078c042
1513d088b0
hexccf9a7a

214932090 has 32 divisors (see below), whose sum is σ = 516948480. Its totient is φ = 57191744.

The previous prime is 214932089. The next prime is 214932121. The reversal of 214932090 is 90239412.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6892 + ... + 21848.

It is an arithmetic number, because the mean of its divisors is an integer number (16154640).

Almost surely, 2214932090 is an apocalyptic number.

214932090 is an abundant number, since it is smaller than the sum of its proper divisors (302016390).

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

214932090 is a wasteful number, since it uses less digits than its factorization.

214932090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15446.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 214932090 is about 14660.5624039462. The cubic root of 214932090 is about 599.0095603930.

The spelling of 214932090 in words is "two hundred fourteen million, nine hundred thirty-two thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 479 958 1437 2395 2874 4790 7185 14370 14957 29914 44871 74785 89742 149570 224355 448710 7164403 14328806 21493209 35822015 42986418 71644030 107466045 214932090