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614424420 = 223354347563
BaseRepresentation
bin100100100111110…
…101111101100100
31120211010222212000
4210213311331210
52224243040140
6140545125300
721140343561
oct4447657544
91524128760
10614424420
11295910185
12151929830
139a3a925c
145b85d868
1538e1ba30
hex249f5f64

614424420 has 192 divisors, whose sum is σ = 2001162240. Its totient is φ = 156352896.

The previous prime is 614424409. The next prime is 614424431. The reversal of 614424420 is 24424416.

It is a happy number.

614424420 is a `hidden beast` number, since 614 + 4 + 2 + 4 + 42 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (614424409) and next prime (614424431).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 63 ways as a sum of consecutive naturals, for example, 1091059 + ... + 1091621.

It is an arithmetic number, because the mean of its divisors is an integer number (10422720).

Almost surely, 2614424420 is an apocalyptic number.

614424420 is a gapful number since it is divisible by the number (60) 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 614424420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000581120).

614424420 is an abundant number, since it is smaller than the sum of its proper divisors (1386737820).

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

614424420 is a wasteful number, since it uses less digits than its factorization.

614424420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 614424420 is about 24787.5860059022. The cubic root of 614424420 is about 850.1381182708.

Adding to 614424420 its reverse (24424416), we get a palindrome (638848836).

The spelling of 614424420 in words is "six hundred fourteen million, four hundred twenty-four thousand, four hundred twenty".