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10103140031 = 29348384139
BaseRepresentation
bin10010110100011000…
…11010111010111111
3222002002211200122112
421122030122322333
5131142400440111
64350305204235
7505236162515
oct113214327277
928062750575
1010103140031
114314a60706
121b5b63067b
13c5019028a
146bbb304b5
153e1e82e8b
hex25a31aebf

10103140031 has 4 divisors (see below), whose sum is σ = 10451524200. Its totient is φ = 9754755864.

The previous prime is 10103140013. The next prime is 10103140093. The reversal of 10103140031 is 13004130101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10103140031 is a prime.

It is a super-2 number, since 2×101031400312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10103139988 and 10103140015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10103140231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174192041 + ... + 174192098.

It is an arithmetic number, because the mean of its divisors is an integer number (2612881050).

Almost surely, 210103140031 is an apocalyptic number.

10103140031 is a deficient number, since it is larger than the sum of its proper divisors (348384169).

10103140031 is an equidigital number, since it uses as much as digits as its factorization.

10103140031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348384168.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10103140031 its reverse (13004130101), we get a palindrome (23107270132).

The spelling of 10103140031 in words is "ten billion, one hundred three million, one hundred forty thousand, thirty-one".

Divisors: 1 29 348384139 10103140031