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219242382 = 231092811193
BaseRepresentation
bin11010001000101…
…01111110001110
3120021112200000020
431010111332032
5422111224012
633431043010
75301346422
oct1504257616
9507480006
10219242382
11102836057
1261510466
1336563928
1421190b82
15143aaa8c
hexd115f8e

219242382 has 32 divisors (see below), whose sum is σ = 444454560. Its totient is φ = 72092160.

The previous prime is 219242369. The next prime is 219242383. The reversal of 219242382 is 283242912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219242383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183178 + ... + 184370.

It is an arithmetic number, because the mean of its divisors is an integer number (13889205).

Almost surely, 2219242382 is an apocalyptic number.

219242382 is an abundant number, since it is smaller than the sum of its proper divisors (225212178).

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

219242382 is a wasteful number, since it uses less digits than its factorization.

219242382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588.

The product of its digits is 13824, while the sum is 33.

The square root of 219242382 is about 14806.8356511444. The cubic root of 219242382 is about 602.9873075278.

The spelling of 219242382 in words is "two hundred nineteen million, two hundred forty-two thousand, three hundred eighty-two".

Divisors: 1 2 3 6 109 218 281 327 562 654 843 1193 1686 2386 3579 7158 30629 61258 91887 130037 183774 260074 335233 390111 670466 780222 1005699 2011398 36540397 73080794 109621191 219242382