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2142903210 = 23571733167
BaseRepresentation
bin111111110111010…
…0001101110101010
312112100020202120120
41333232201232222
513342040400320
6552345504110
7104050243140
oct17756415652
95470222516
102142903210
119aa681998
124b97a2036
13281c5cc86
14164857590
15c81de440
hex7fba1baa

2142903210 has 256 divisors, whose sum is σ = 6542622720. Its totient is φ = 439464960.

The previous prime is 2142903209. The next prime is 2142903233. The reversal of 2142903210 is 123092412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 31983597 + ... + 31983663.

It is an arithmetic number, because the mean of its divisors is an integer number (25557120).

Almost surely, 22142903210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2142903210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3271311360).

2142903210 is an abundant number, since it is smaller than the sum of its proper divisors (4399719510).

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

2142903210 is a wasteful number, since it uses less digits than its factorization.

2142903210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2142903210 is about 46291.5025679660. The cubic root of 2142903210 is about 1289.2412279595.

Adding to 2142903210 its reverse (123092412), we get a palindrome (2265995622).

The spelling of 2142903210 in words is "two billion, one hundred forty-two million, nine hundred three thousand, two hundred ten".