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143034010021 = 722919061429
BaseRepresentation
bin1000010100110101111…
…1011100100110100101
3111200012021201120001201
42011031133130212211
54320413201310041
6145413043122501
713222342011400
oct2051537344645
9450167646051
10143034010021
1155729a73841
1223879973431
13106463237b6
146ccc568d37
153ac2282631
hex214d7dc9a5

143034010021 has 6 divisors (see below), whose sum is σ = 166386501510. Its totient is φ = 122600579976.

The previous prime is 143034010019. The next prime is 143034010079. The reversal of 143034010021 is 120010430341.

It can be written as a sum of positive squares in only one way, i.e., 142170473025 + 863536996 = 377055^2 + 29386^2 .

It is not a de Polignac number, because 143034010021 - 21 = 143034010019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143034010081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1459530666 + ... + 1459530763.

It is an arithmetic number, because the mean of its divisors is an integer number (27731083585).

Almost surely, 2143034010021 is an apocalyptic number.

It is an amenable number.

143034010021 is a deficient number, since it is larger than the sum of its proper divisors (23352491489).

143034010021 is an equidigital number, since it uses as much as digits as its factorization.

143034010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919061443 (or 2919061436 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 143034010021 its reverse (120010430341), we get a palindrome (263044440362).

The spelling of 143034010021 in words is "one hundred forty-three billion, thirty-four million, ten thousand, twenty-one".

Divisors: 1 7 49 2919061429 20433430003 143034010021