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103440041031 = 334480013677
BaseRepresentation
bin110000001010110000…
…0011100010001000111
3100212222220200112101210
41200111200130101013
53143321122303111
6115304131022503
710321224561435
oct1402540342107
9325886615353
10103440041031
113a96122a918
1218069a3aa33
1399a6414992
145013c91d55
152a562510a6
hex181581c447

103440041031 has 4 divisors (see below), whose sum is σ = 137920054712. Its totient is φ = 68960027352.

The previous prime is 103440041017. The next prime is 103440041057. The reversal of 103440041031 is 130140044301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130140044301 = 343380014767.

It is not a de Polignac number, because 103440041031 - 29 = 103440040519 is a prime.

It is a super-2 number, since 2×1034400410312 (a number of 23 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 = 103440040989 and 103440041007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103440041531) 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, 17240006836 + ... + 17240006841.

It is an arithmetic number, because the mean of its divisors is an integer number (34480013678).

Almost surely, 2103440041031 is an apocalyptic number.

103440041031 is a deficient number, since it is larger than the sum of its proper divisors (34480013681).

103440041031 is an equidigital number, since it uses as much as digits as its factorization.

103440041031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34480013680.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 103440041031 its reverse (130140044301), we get a palindrome (233580085332).

The spelling of 103440041031 in words is "one hundred three billion, four hundred forty million, forty-one thousand, thirty-one".

Divisors: 1 3 34480013677 103440041031