Search a number
-
+
143623807240 = 23531371271572
BaseRepresentation
bin1000010111000010100…
…1010110000100001000
3111201201101112100202011
42011300221112010020
54323120143312430
6145551352345304
713243063134664
oct2056051260410
9451641470664
10143623807240
1155a01993161
1223a033a5234
131070b589434
146d46a178a4
153b08e3722a
hex2170a56108

143623807240 has 192 divisors, whose sum is σ = 347504394240. Its totient is φ = 53325941760.

The previous prime is 143623807219. The next prime is 143623807259. The reversal of 143623807240 is 42708326341.

It is a happy number.

It is a super-2 number, since 2×1436238072402 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 143623807193 and 143623807202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 914801242 + ... + 914801398.

It is an arithmetic number, because the mean of its divisors is an integer number (1809918720).

Almost surely, 2143623807240 is an apocalyptic number.

143623807240 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 143623807240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173752197120).

143623807240 is an abundant number, since it is smaller than the sum of its proper divisors (203880587000).

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

143623807240 is a wasteful number, since it uses less digits than its factorization.

143623807240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 143623807240 in words is "one hundred forty-three billion, six hundred twenty-three million, eight hundred seven thousand, two hundred forty".