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10142431443 = 3553787517
BaseRepresentation
bin10010111001000100…
…10011100011010011
3222011211202220100000
421130202103203103
5131232430301233
64354231301043
7506224146654
oct113442234323
928154686300
1010142431443
114335157951
121b7081a783
13c58369431
146c303b52b
153e5644d13
hex25c8938d3

10142431443 has 24 divisors (see below), whose sum is σ = 15479453808. Its totient is φ = 6634034784.

The previous prime is 10142431399. The next prime is 10142431447. The reversal of 10142431443 is 34413424101.

It is not a de Polignac number, because 10142431443 - 216 = 10142365907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10142431447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380880 + ... + 406637.

It is an arithmetic number, because the mean of its divisors is an integer number (644977242).

Almost surely, 210142431443 is an apocalyptic number.

10142431443 is a deficient number, since it is larger than the sum of its proper divisors (5337022365).

10142431443 is an frugal number, since it uses more digits than its factorization.

10142431443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787585 (or 787573 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 10142431443 its reverse (34413424101), we get a palindrome (44555855544).

The spelling of 10142431443 in words is "ten billion, one hundred forty-two million, four hundred thirty-one thousand, four hundred forty-three".

Divisors: 1 3 9 27 53 81 159 243 477 1431 4293 12879 787517 2362551 7087653 21262959 41738401 63788877 125215203 191366631 375645609 1126936827 3380810481 10142431443