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2159107902 = 2327193147619
BaseRepresentation
bin1000000010110001…
…0101111100111110
312120110202001020100
42000230111330332
513410212423102
6554125101530
7104335054140
oct20054257476
95513661210
102159107902
11a0883a7a6
125030b78a6
13285414a53
14166a74c90
15c9840a1c
hex80b15f3e

2159107902 has 192 divisors, whose sum is σ = 5942476800. Its totient is φ = 552640320.

The previous prime is 2159107901. The next prime is 2159107919. The reversal of 2159107902 is 2097019512.

2159107902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159107901) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3487749 + ... + 3488367.

It is an arithmetic number, because the mean of its divisors is an integer number (30950400).

Almost surely, 22159107902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2159107902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2971238400).

2159107902 is an abundant number, since it is smaller than the sum of its proper divisors (3783368898).

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

2159107902 is a wasteful number, since it uses less digits than its factorization.

2159107902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 2159107902 is about 46466.2017169469. The cubic root of 2159107902 is about 1292.4828296177.

The spelling of 2159107902 in words is "two billion, one hundred fifty-nine million, one hundred seven thousand, nine hundred two".