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103231131436 = 22191358304361
BaseRepresentation
bin110000000100100001…
…1100000111100101100
3100212110100120211022101
41200021003200330230
53142404132201221
6115231305224444
710313110065526
oct1401103407454
9325410524271
10103231131436
113a864311a64
121800ba92124
13997205b234
144dd4230a16
152a42c36d91
hex18090e0f2c

103231131436 has 12 divisors (see below), whose sum is σ = 190162610680. Its totient is φ = 48898956960.

The previous prime is 103231131413. The next prime is 103231131439. The reversal of 103231131436 is 634131132301.

It is not an unprimeable number, because it can be changed into a prime (103231131439) 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, 679152105 + ... + 679152256.

Almost surely, 2103231131436 is an apocalyptic number.

It is an amenable number.

103231131436 is a deficient number, since it is larger than the sum of its proper divisors (86931479244).

103231131436 is a wasteful number, since it uses less digits than its factorization.

103231131436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358304384 (or 1358304382 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 103231131436 its reverse (634131132301), we get a palindrome (737362263737).

The spelling of 103231131436 in words is "one hundred three billion, two hundred thirty-one million, one hundred thirty-one thousand, four hundred thirty-six".

Divisors: 1 2 4 19 38 76 1358304361 2716608722 5433217444 25807782859 51615565718 103231131436