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103231001223 = 32722310177561
BaseRepresentation
bin110000000100100001…
…1000001001010000111
3100212110100100012200200
41200021003001022013
53142404114014343
6115231302341543
710313106014100
oct1401103011207
9325410305620
10103231001223
113a864233149
121800ba2a8b3
139972013b9c
144dd41d93a7
152a42c0d4d3
hex18090c1287

103231001223 has 36 divisors (see below), whose sum is σ = 180997762608. Its totient is φ = 56424392640.

The previous prime is 103231001201. The next prime is 103231001243. The reversal of 103231001223 is 322100132301.

It is not a de Polignac number, because 103231001223 - 228 = 102962565767 is a prime.

It is a super-2 number, since 2×1032310012232 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103231001196 and 103231001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103231001243) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5078638 + ... + 5098923.

It is an arithmetic number, because the mean of its divisors is an integer number (5027715628).

Almost surely, 2103231001223 is an apocalyptic number.

103231001223 is a deficient number, since it is larger than the sum of its proper divisors (77766761385).

103231001223 is a wasteful number, since it uses less digits than its factorization.

103231001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10177604 (or 10177594 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 103231001223 its reverse (322100132301), we get a palindrome (425331133524).

The spelling of 103231001223 in words is "one hundred three billion, two hundred thirty-one million, one thousand, two hundred twenty-three".

Divisors: 1 3 7 9 21 23 49 63 69 147 161 207 441 483 1127 1449 3381 10143 10177561 30532683 71242927 91598049 213728781 234083903 498700489 641186343 702251709 1496101467 1638587321 2106755127 4488304401 4915761963 11470111247 14747285889 34410333741 103231001223