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214944688 = 2471919149
BaseRepresentation
bin11001100111111…
…00101110110000
3112222110022200101
430303330232300
5420011212223
633155002144
75216666620
oct1463745660
9488408611
10214944688
11100370142
125bb99354
13356ba70a
1420792880
1513d0c4ad
hexccfcbb0

214944688 has 20 divisors (see below), whose sum is σ = 475949200. Its totient is φ = 92119104.

The previous prime is 214944671. The next prime is 214944713. The reversal of 214944688 is 886449412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959463 + ... + 959686.

It is an arithmetic number, because the mean of its divisors is an integer number (23797460).

Almost surely, 2214944688 is an apocalyptic number.

214944688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

214944688 is an abundant number, since it is smaller than the sum of its proper divisors (261004512).

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

214944688 is a wasteful number, since it uses less digits than its factorization.

214944688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919164 (or 1919158 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 214944688 is about 14660.9920537459. The cubic root of 214944688 is about 599.0212635858.

The spelling of 214944688 in words is "two hundred fourteen million, nine hundred forty-four thousand, six hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 1919149 3838298 7676596 13434043 15353192 26868086 30706384 53736172 107472344 214944688