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2997450720 = 2532511217203
BaseRepresentation
bin1011001010101001…
…0111011111100000
321201220020021101100
42302222113133200
522114321410340
61213233434400
7134164624245
oct26252273740
97656207340
102997450720
1112a8a8a100
126b7a0ba00
1338a0010a4
142061415cc
1512823d830
hexb2a977e0

2997450720 has 216 divisors, whose sum is σ = 11243880648. Its totient is φ = 726612480.

The previous prime is 2997450707. The next prime is 2997450721. The reversal of 2997450720 is 270547992.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2997450721) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 165639 + ... + 182841.

It is an arithmetic number, because the mean of its divisors is an integer number (52055003).

Almost surely, 22997450720 is an apocalyptic number.

2997450720 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 2997450720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5621940324).

2997450720 is an abundant number, since it is smaller than the sum of its proper divisors (8246429928).

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

2997450720 is a wasteful number, since it uses less digits than its factorization.

2997450720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17246 (or 17224 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 2997450720 is about 54748.9791685653. The cubic root of 2997450720 is about 1441.8409325392.

The spelling of 2997450720 in words is "two billion, nine hundred ninety-seven million, four hundred fifty thousand, seven hundred twenty".