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143020310420 = 22513896180653
BaseRepresentation
bin1000010100110010101…
…1001011111110010100
3111200011022221112202002
42011030223023332110
54320401144413140
6145411433334432
713222114403021
oct2051453137624
9450138845662
10143020310420
1155722267059
1223875267418
1310643538020
146cca800548
153ac0e78415
hex214cacbf94

143020310420 has 48 divisors (see below), whose sum is σ = 327080209680. Its totient is φ = 52214148096.

The previous prime is 143020310357. The next prime is 143020310453. The reversal of 143020310420 is 24013020341.

143020310420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 33857472016 + 109162838404 = 184004^2 + 330398^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 143020310392 and 143020310401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3067187 + ... + 3113466.

It is an arithmetic number, because the mean of its divisors is an integer number (6814171035).

Almost surely, 2143020310420 is an apocalyptic number.

143020310420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143020310420 is an abundant number, since it is smaller than the sum of its proper divisors (184059899260).

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

143020310420 is a wasteful number, since it uses less digits than its factorization.

143020310420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6180764 (or 6180762 counting only the distinct ones).

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

Adding to 143020310420 its reverse (24013020341), we get a palindrome (167033330761).

The spelling of 143020310420 in words is "one hundred forty-three billion, twenty million, three hundred ten thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 89 130 178 260 356 445 890 1157 1780 2314 4628 5785 11570 23140 6180653 12361306 24722612 30903265 61806530 80348489 123613060 160696978 321393956 401742445 550078117 803484890 1100156234 1606969780 2200312468 2750390585 5500781170 7151015521 11001562340 14302031042 28604062084 35755077605 71510155210 143020310420