Search a number
-
+
143020230221 = 1115838213417
BaseRepresentation
bin1000010100110010101…
…0111000011001001101
3111200011022210110201202
42011030222320121031
54320401134331341
6145411431515245
713222113620141
oct2051452703115
9450138713652
10143020230221
1155722211880
1223875228b25
131064350a67b
146cca7bd221
153ac0e5e79b
hex214cab864d

143020230221 has 8 divisors (see below), whose sum is σ = 156120649344. Its totient is φ = 129936241120.

The previous prime is 143020230163. The next prime is 143020230277. The reversal of 143020230221 is 122032020341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143020230221 - 222 = 143016035917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143020230193 and 143020230202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143020236221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4089296 + ... + 4124121.

It is an arithmetic number, because the mean of its divisors is an integer number (19515081168).

Almost surely, 2143020230221 is an apocalyptic number.

143020230221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143020230221 is a deficient number, since it is larger than the sum of its proper divisors (13100419123).

143020230221 is a wasteful number, since it uses less digits than its factorization.

143020230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8215011.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 143020230221 its reverse (122032020341), we get a palindrome (265052250562).

The spelling of 143020230221 in words is "one hundred forty-three billion, twenty million, two hundred thirty thousand, two hundred twenty-one".

Divisors: 1 11 1583 17413 8213417 90347587 13001839111 143020230221