Search a number
-
+
2152540000 = 25541317487
BaseRepresentation
bin1000000001001101…
…0010011101100000
312120000101100202201
42000103102131200
513402022240000
6553332222544
7104225200552
oct20023223540
95500340681
102152540000
11a05064186
12500a6aa54
13283c55410
14165c454d2
15c8e9496a
hex804d2760

2152540000 has 240 divisors, whose sum is σ = 6050788128. Its totient is φ = 746496000.

The previous prime is 2152539989. The next prime is 2152540037. The reversal of 2152540000 is 452512.

It is a self number, because there is not a number n which added to its sum of digits gives 2152540000.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 4419757 + ... + 4420243.

Almost surely, 22152540000 is an apocalyptic number.

2152540000 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 2152540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3025394064).

2152540000 is an abundant number, since it is smaller than the sum of its proper divisors (3898248128).

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

2152540000 is a wasteful number, since it uses less digits than its factorization.

2152540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2152540000 is about 46395.4739171829. The cubic root of 2152540000 is about 1291.1709416943.

Adding to 2152540000 its reverse (452512), we get a palindrome (2152992512).

The spelling of 2152540000 in words is "two billion, one hundred fifty-two million, five hundred forty thousand".