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7080099840 = 2143451197
BaseRepresentation
bin1101001100000000…
…11100000000000000
3200021102110100010000
412212000130000000
5104000001143330
63130315040000
7340310566332
oct64600340000
920242410100
107080099840
113003593890
121457140000
1388aa9c8b8
144b244b452
152b688c560
hex1a601c000

7080099840 has 600 divisors, whose sum is σ = 27975678192. Its totient is φ = 1698693120.

The previous prime is 7080099839. The next prime is 7080099841. The reversal of 7080099840 is 489900807.

It is an interprime number because it is at equal distance from previous prime (7080099839) and next prime (7080099841).

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 (7080099841) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 72990672 + ... + 72990768.

Almost surely, 27080099840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7080099840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13987839096).

7080099840 is an abundant number, since it is smaller than the sum of its proper divisors (20895578352).

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

7080099840 is an equidigital number, since it uses as much as digits as its factorization.

7080099840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 7080099840 is about 84143.3291473543. The cubic root of 7080099840 is about 1920.1999791703.

The spelling of 7080099840 in words is "seven billion, eighty million, ninety-nine thousand, eight hundred forty".