Search a number
-
+
2642467590 = 2335721731379
BaseRepresentation
bin1001110110000000…
…1101101100000110
320211011021021002000
42131200031230012
520402432430330
61114113130130
7122324414100
oct23540155406
96734237060
102642467590
111136671014
12618b59946
133315c19b9
141b0d38570
15106ebd560
hex9d80db06

2642467590 has 384 divisors, whose sum is σ = 8982835200. Its totient is φ = 548674560.

The previous prime is 2642467571. The next prime is 2642467637. The reversal of 2642467590 is 957642462.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6972021 + ... + 6972399.

It is an arithmetic number, because the mean of its divisors is an integer number (23392800).

Almost surely, 22642467590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2642467590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4491417600).

2642467590 is an abundant number, since it is smaller than the sum of its proper divisors (6340367610).

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

2642467590 is a wasteful number, since it uses less digits than its factorization.

2642467590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 2642467590 is about 51404.9374087743. The cubic root of 2642467590 is about 1382.5151202747.

The spelling of 2642467590 in words is "two billion, six hundred forty-two million, four hundred sixty-seven thousand, five hundred ninety".