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2490641018880 = 21235743134677
BaseRepresentation
bin100100001111100101110…
…001011111000000000000
322211002210001111001200020
4210033211301133000000
5311301313100101010
65144103520453440
7344641256232240
oct44174561370000
98732701431606
102490641018880
11880302a19243
1234285277a280
13150b35752aa1
1488794b33b20
1544bc2174470
hex243e5c5f000

2490641018880 has 416 divisors, whose sum is σ = 9319390063104. Its totient is φ = 556045959168.

The previous prime is 2490641018869. The next prime is 2490641018897. The reversal of 2490641018880 is 888101460942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18426102 + ... + 18560778.

Almost surely, 22490641018880 is an apocalyptic number.

2490641018880 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 2490641018880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4659695031552).

2490641018880 is an abundant number, since it is smaller than the sum of its proper divisors (6828749044224).

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

2490641018880 is a wasteful number, since it uses less digits than its factorization.

2490641018880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134759 (or 134737 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 2490641018880 in words is "two trillion, four hundred ninety billion, six hundred forty-one million, eighteen thousand, eight hundred eighty".