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142631203758 = 23160714792699
BaseRepresentation
bin1000010011010101111…
…0110111001110101110
3111122011012202212202020
42010311132313032232
54314102042010013
6145305053411010
713206351141201
oct2046536671656
9448135685666
10142631203758
11555426614aa
1223786a99a66
13105b0a3bab4
146c90c73938
153a9bc17623
hex21357b73ae

142631203758 has 16 divisors (see below), whose sum is σ = 285439939200. Its totient is φ = 47514145976.

The previous prime is 142631203717. The next prime is 142631203769. The reversal of 142631203758 is 857302136241.

It is a super-2 number, since 2×1426312037582 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7386708 + ... + 7405991.

It is an arithmetic number, because the mean of its divisors is an integer number (17839996200).

Almost surely, 2142631203758 is an apocalyptic number.

142631203758 is an abundant number, since it is smaller than the sum of its proper divisors (142808735442).

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

142631203758 is a wasteful number, since it uses less digits than its factorization.

142631203758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14794311.

The product of its (nonzero) digits is 241920, while the sum is 42.

Adding to 142631203758 its reverse (857302136241), we get a palindrome (999933339999).

The spelling of 142631203758 in words is "one hundred forty-two billion, six hundred thirty-one million, two hundred three thousand, seven hundred fifty-eight".

Divisors: 1 2 3 6 1607 3214 4821 9642 14792699 29585398 44378097 88756194 23771867293 47543734586 71315601879 142631203758