Search a number
-
+
2421955200 = 273527231567
BaseRepresentation
bin1001000001011100…
…0001101010000000
320020210100001221110
42100113001222000
514430010031300
61040154523320
7114006164610
oct22027015200
96223301843
102421955200
111033148875
12577136540
132c7a04cb2
1418d936a40
15e2961550
hex905c1a80

2421955200 has 384 divisors, whose sum is σ = 9519390720. Its totient is φ = 529182720.

The previous prime is 2421955187. The next prime is 2421955229. The reversal of 2421955200 is 25591242.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1544817 + ... + 1546383.

It is an arithmetic number, because the mean of its divisors is an integer number (24790080).

Almost surely, 22421955200 is an apocalyptic number.

2421955200 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 2421955200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4759695360).

2421955200 is an abundant number, since it is smaller than the sum of its proper divisors (7097435520).

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

2421955200 is a wasteful number, since it uses less digits than its factorization.

2421955200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624 (or 1607 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2421955200 is about 49213.3640386430. The cubic root of 2421955200 is about 1342.9361621138.

The spelling of 2421955200 in words is "two billion, four hundred twenty-one million, nine hundred fifty-five thousand, two hundred".