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2455143040 = 2757279991
BaseRepresentation
bin1001001001010110…
…1000001010000000
320100002210012002201
42102111220022000
520012004034130
61043342122544
7114561241300
oct22225501200
96302705081
102455143040
11104a956339
12586280454
13301854c7c
141940d5600
15e5819bca
hex92568280

2455143040 has 192 divisors, whose sum is σ = 6920985600. Its totient is φ = 830269440.

The previous prime is 2455143037. The next prime is 2455143139. The reversal of 2455143040 is 403415542.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2476945 + ... + 2477935.

It is an arithmetic number, because the mean of its divisors is an integer number (36046800).

Almost surely, 22455143040 is an apocalyptic number.

2455143040 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 2455143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3460492800).

2455143040 is an abundant number, since it is smaller than the sum of its proper divisors (4465842560).

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

2455143040 is an equidigital number, since it uses as much as digits as its factorization.

2455143040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2455143040 is about 49549.3999963673. The cubic root of 2455143040 is about 1349.0424009226.

Adding to 2455143040 its reverse (403415542), we get a palindrome (2858558582).

The spelling of 2455143040 in words is "two billion, four hundred fifty-five million, one hundred forty-three thousand, forty".