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214696440 = 23335724057
BaseRepresentation
bin11001100110000…
…00000111111000
3112221222201011000
430303000013320
5414430241230
633145405000
75214614100
oct1463000770
9487881130
10214696440
11100210682
125ba99760
133563171a
142072a200
hexccc01f8

214696440 has 192 divisors, whose sum is σ = 832701600. Its totient is φ = 49061376.

The previous prime is 214696439. The next prime is 214696453. The reversal of 214696440 is 44696412.

214696440 is a `hidden beast` number, since 2 + 1 + 4 + 6 + 9 + 644 + 0 = 666.

It is a super-2 number, since 2×2146964402 = 92189122697347200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 214696395 and 214696404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50892 + ... + 54948.

Almost surely, 2214696440 is an apocalyptic number.

214696440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214696440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416350800).

214696440 is an abundant number, since it is smaller than the sum of its proper divisors (618005160).

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

214696440 is a wasteful number, since it uses less digits than its factorization.

214696440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091 (or 4074 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 214696440 is about 14652.5233321773. The cubic root of 214696440 is about 598.7905637446.

The spelling of 214696440 in words is "two hundred fourteen million, six hundred ninety-six thousand, four hundred forty".