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1680036624 = 243276189307
BaseRepresentation
bin110010000100011…
…0101001100010000
311100002021200222200
41210020311030100
511420042132444
6434413003200
756430034650
oct14410651420
94302250880
101680036624
11792378422
123aa783500
1320a0a9a16
1411d1aa360
159c75d969
hex64235310

1680036624 has 240 divisors, whose sum is σ = 5540895360. Its totient is φ = 465315840.

The previous prime is 1680036619. The next prime is 1680036637. The reversal of 1680036624 is 4266300861.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5472279 + ... + 5472585.

It is an arithmetic number, because the mean of its divisors is an integer number (23087064).

Almost surely, 21680036624 is an apocalyptic number.

1680036624 is a gapful number since it is divisible by the number (14) 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 1680036624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2770447680).

1680036624 is an abundant number, since it is smaller than the sum of its proper divisors (3860858736).

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

1680036624 is a wasteful number, since it uses less digits than its factorization.

1680036624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 469 counting only the distinct ones).

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

The square root of 1680036624 is about 40988.2498284569. The cubic root of 1680036624 is about 1188.7930289898.

The spelling of 1680036624 in words is "one billion, six hundred eighty million, thirty-six thousand, six hundred twenty-four".