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10121145142 = 219477259823
BaseRepresentation
bin10010110110100010…
…00110101100110110
3222010100201110000111
421123101012230312
5131212003121032
64352151133234
7505545212533
oct113321065466
928110643014
1010121145142
114324139169
121b6567421a
13c53b256a4
146c0299d8a
153e383cc47
hex25b446b36

10121145142 has 8 divisors (see below), whose sum is σ = 15182555616. Its totient is φ = 5060293272.

The previous prime is 10121145137. The next prime is 10121145157. The reversal of 10121145142 is 24154112101.

It is a happy number.

10121145142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90958 + ... + 168865.

It is an arithmetic number, because the mean of its divisors is an integer number (1897819452).

Almost surely, 210121145142 is an apocalyptic number.

10121145142 is a deficient number, since it is larger than the sum of its proper divisors (5061410474).

10121145142 is a wasteful number, since it uses less digits than its factorization.

10121145142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279302.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 10121145142 its reverse (24154112101), we get a palindrome (34275257243).

The spelling of 10121145142 in words is "ten billion, one hundred twenty-one million, one hundred forty-five thousand, one hundred forty-two".

Divisors: 1 2 19477 38954 259823 519646 5060572571 10121145142