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103005031111 = 2953346710061
BaseRepresentation
bin101111111101110010…
…1000000101011000111
3100211212121010201222021
41133323211000223013
53141423241443421
6115153031144011
710304363214103
oct1377345005307
9324777121867
10103005031111
113a758722494
1217b68215007
139937265c68
144db21b6903
152a2ce74341
hex17fb940ac7

103005031111 has 8 divisors (see below), whose sum is σ = 103079877264. Its totient is φ = 102930217920.

The previous prime is 103005031097. The next prime is 103005031127. The reversal of 103005031111 is 111130500301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103005031111 is a prime.

It is a super-2 number, since 2×1030050311112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103005031511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10233021 + ... + 10243081.

It is an arithmetic number, because the mean of its divisors is an integer number (12884984658).

Almost surely, 2103005031111 is an apocalyptic number.

103005031111 is a deficient number, since it is larger than the sum of its proper divisors (74846153).

103005031111 is a wasteful number, since it uses less digits than its factorization.

103005031111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16481.

The product of its (nonzero) digits is 45, while the sum is 16.

Adding to 103005031111 its reverse (111130500301), we get a palindrome (214135531412).

The spelling of 103005031111 in words is "one hundred three billion, five million, thirty-one thousand, one hundred eleven".

Divisors: 1 2953 3467 10061 10238051 29710133 34881487 103005031111