Search a number
-
+
2111331300000 = 25355131928493
BaseRepresentation
bin11110101110010101001…
…001101111001010100000
321110211201022022212121120
4132232111021233022200
5234043001303100000
64253533205052240
7305352520640436
oct36562511571240
97424638285546
102111331300000
1174445752732a
122a12346b7080
13124136807b50
14742907c0d56
1539dc1de96a0
hex1eb9526f2a0

2111331300000 has 576 divisors, whose sum is σ = 7853156115840. Its totient is φ = 492341760000.

The previous prime is 2111331299993. The next prime is 2111331300017. The reversal of 2111331300000 is 31331112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 74085754 + ... + 74114246.

It is an arithmetic number, because the mean of its divisors is an integer number (13633951590).

Almost surely, 22111331300000 is an apocalyptic number.

2111331300000 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 2111331300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3926578057920).

2111331300000 is an abundant number, since it is smaller than the sum of its proper divisors (5741824815840).

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

2111331300000 is a wasteful number, since it uses less digits than its factorization.

2111331300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28563 (or 28535 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 2111331300000 its reverse (31331112), we get a palindrome (2111362631112).

The spelling of 2111331300000 in words is "two trillion, one hundred eleven billion, three hundred thirty-one million, three hundred thousand".