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143032054420 = 22517420682513
BaseRepresentation
bin1000010100110101011…
…1111111001010010100
3111200012011001012111001
42011031113333022110
54320412201220140
6145412533153044
713222316255053
oct2051527771224
9450164035431
10143032054420
1155728958542
122387918b784
1310645aba638
146ccc1ba39a
153ac1ee7e9a
hex214d5ff294

143032054420 has 24 divisors (see below), whose sum is σ = 318035980584. Its totient is φ = 53847361536.

The previous prime is 143032054387. The next prime is 143032054427. The reversal of 143032054420 is 24450230341.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 61868602756 + 81163451664 = 248734^2 + 284892^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143032054427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210340917 + ... + 210341596.

It is an arithmetic number, because the mean of its divisors is an integer number (13251499191).

Almost surely, 2143032054420 is an apocalyptic number.

143032054420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143032054420 is an abundant number, since it is smaller than the sum of its proper divisors (175003926164).

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

143032054420 is a wasteful number, since it uses less digits than its factorization.

143032054420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420682539 (or 420682537 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 143032054420 its reverse (24450230341), we get a palindrome (167482284761).

The spelling of 143032054420 in words is "one hundred forty-three billion, thirty-two million, fifty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 420682513 841365026 1682730052 2103412565 4206825130 7151602721 8413650260 14303205442 28606410884 35758013605 71516027210 143032054420