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2143233120 = 253574391453
BaseRepresentation
bin111111110111111…
…0010010001100000
312112100212112010110
41333233302101200
513342131424440
6552400531320
7104053116030
oct17757622140
95470775113
102143233120
119aa887846
124b9920b40
132820471a2
141649018c0
15c8257080
hex7fbf2460

2143233120 has 192 divisors, whose sum is σ = 7738536960. Its totient is φ = 488429568.

The previous prime is 2143233097. The next prime is 2143233137. The reversal of 2143233120 is 213323412.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1474314 + ... + 1475766.

It is an arithmetic number, because the mean of its divisors is an integer number (40304880).

Almost surely, 22143233120 is an apocalyptic number.

2143233120 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 2143233120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3869268480).

2143233120 is an abundant number, since it is smaller than the sum of its proper divisors (5595303840).

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

2143233120 is a wasteful number, since it uses less digits than its factorization.

2143233120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2143233120 is about 46295.0658277964. The cubic root of 2143233120 is about 1289.3073861425.

Adding to 2143233120 its reverse (213323412), we get a palindrome (2356556532).

The spelling of 2143233120 in words is "two billion, one hundred forty-three million, two hundred thirty-three thousand, one hundred twenty".