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2642442480 = 243351931267
BaseRepresentation
bin1001110110000000…
…0111100011110000
320211011012222122000
42131200013203300
520402431124410
61114112414000
7122324250636
oct23540074360
96734188560
102642442480
111136654167
12618b47300
133315b3442
141b0d2d356
15106eb5dc0
hex9d8078f0

2642442480 has 480 divisors, whose sum is σ = 10047571200. Its totient is φ = 636387840.

The previous prime is 2642442427. The next prime is 2642442521. The reversal of 2642442480 is 842442462.

It is a happy number.

2642442480 is a `hidden beast` number, since 2 + 642 + 4 + 4 + 2 + 4 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 39439407 + ... + 39439473.

It is an arithmetic number, because the mean of its divisors is an integer number (20932440).

Almost surely, 22642442480 is an apocalyptic number.

2642442480 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 2642442480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5023785600).

2642442480 is an abundant number, since it is smaller than the sum of its proper divisors (7405128720).

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

2642442480 is a wasteful number, since it uses less digits than its factorization.

2642442480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 36.

The square root of 2642442480 is about 51404.6931709547. The cubic root of 2642442480 is about 1382.5107411526.

The spelling of 2642442480 in words is "two billion, six hundred forty-two million, four hundred forty-two thousand, four hundred eighty".