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10142757 = 321126973
BaseRepresentation
bin100110101100…
…010000100101
3201002022020200
4212230100211
510044032012
61001221113
7152132502
oct46542045
921068220
1010142757
1157a8449
123491799
132141841
1414c04a9
15d553dc
hex9ac425

10142757 has 6 divisors (see below), whose sum is σ = 14650662. Its totient is φ = 6761832.

The previous prime is 10142753. The next prime is 10142771. The reversal of 10142757 is 75724101.

It can be written as a sum of positive squares in only one way, i.e., 9771876 + 370881 = 3126^2 + 609^2 .

It is not a de Polignac number, because 10142757 - 22 = 10142753 is a prime.

It is a super-2 number, since 2×101427572 = 205751039122098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10142757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10142753) 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, 563478 + ... + 563495.

It is an arithmetic number, because the mean of its divisors is an integer number (2441777).

Almost surely, 210142757 is an apocalyptic number.

It is an amenable number.

10142757 is a deficient number, since it is larger than the sum of its proper divisors (4507905).

10142757 is a wasteful number, since it uses less digits than its factorization.

10142757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126979 (or 1126976 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 10142757 is about 3184.7695364029. The cubic root of 10142757 is about 216.4638309474.

Adding to 10142757 its reverse (75724101), we get a palindrome (85866858).

The spelling of 10142757 in words is "ten million, one hundred forty-two thousand, seven hundred fifty-seven".

Divisors: 1 3 9 1126973 3380919 10142757