Search a number
-
+
143221199880 = 233511237266587
BaseRepresentation
bin1000010101100010100…
…1100001010000001000
3111200200022221210021110
42011120221201100020
54321304111344010
6145443411210320
713230104053413
oct2053051412010
9450608853243
10143221199880
11558156a7300
12239105a69a0
1310676044125
146d09374b7a
153ad390b120
hex2158a61408

143221199880 has 192 divisors, whose sum is σ = 485040870720. Its totient is φ = 33781777920.

The previous prime is 143221199857. The next prime is 143221199881. The reversal of 143221199880 is 88991122341.

It is a happy number.

143221199880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (143221199881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 403947 + ... + 670533.

It is an arithmetic number, because the mean of its divisors is an integer number (2526254535).

Almost surely, 2143221199880 is an apocalyptic number.

143221199880 is a gapful number since it is divisible by the number (10) 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 143221199880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242520435360).

143221199880 is an abundant number, since it is smaller than the sum of its proper divisors (341819670840).

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

143221199880 is a wasteful number, since it uses less digits than its factorization.

143221199880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266660 (or 266645 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 48.

The spelling of 143221199880 in words is "one hundred forty-three billion, two hundred twenty-one million, one hundred ninety-nine thousand, eight hundred eighty".