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7997010120 = 23345111767197
BaseRepresentation
bin1110111001010100…
…01011000011001000
3202122022210012120000
413130222023003020
5112334213310440
63401311403000
7402113315211
oct73452130310
922568705500
107997010120
113434116080
121672223460
139a5a37268
1455c12a408
1531c109730
hex1dca8b0c8

7997010120 has 640 divisors, whose sum is σ = 31670559360. Its totient is φ = 1788272640.

The previous prime is 7997010071. The next prime is 7997010121. The reversal of 7997010120 is 210107997.

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

It is not an unprimeable number, because it can be changed into a prime (7997010121) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 40593862 + ... + 40594058.

It is an arithmetic number, because the mean of its divisors is an integer number (49485249).

Almost surely, 27997010120 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 7997010120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15835279680).

7997010120 is an abundant number, since it is smaller than the sum of its proper divisors (23673549240).

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

7997010120 is a wasteful number, since it uses less digits than its factorization.

7997010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 7997010120 is about 89426.0036007424. The cubic root of 7997010120 is about 1999.7508122874.

The spelling of 7997010120 in words is "seven billion, nine hundred ninety-seven million, ten thousand, one hundred twenty".