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2687053824 = 2123471389
BaseRepresentation
bin1010000000101001…
…0011000000000000
320221021011110220000
42200022103000000
521000341210244
61122344520000
7123405403110
oct24012230000
96837143800
102687053824
111159854344
1262ba80000
1333a902ba0
141b6c23040
1510ad79169
hexa0293000

2687053824 has 520 divisors, whose sum is σ = 9990398880. Its totient is φ = 700710912.

The previous prime is 2687053823. The next prime is 2687053829. The reversal of 2687053824 is 4283507862.

2687053824 is a `hidden beast` number, since 26 + 8 + 70 + 538 + 24 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2687053824.

It is not an unprimeable number, because it can be changed into a prime (2687053823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30191572 + ... + 30191660.

Almost surely, 22687053824 is an apocalyptic number.

2687053824 is a gapful number since it is divisible by the number (24) 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 2687053824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4995199440).

2687053824 is an abundant number, since it is smaller than the sum of its proper divisors (7303345056).

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

2687053824 is an equidigital number, since it uses as much as digits as its factorization.

2687053824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 2687053824 is about 51836.7999012285. The cubic root of 2687053824 is about 1390.2474972917.

The spelling of 2687053824 in words is "two billion, six hundred eighty-seven million, fifty-three thousand, eight hundred twenty-four".