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1230232073 = 72232514349
BaseRepresentation
bin100100101010011…
…1101101000001001
310011201220021010212
41021110331220021
510004414411243
6322024050505
742325541300
oct11124755011
93151807125
101230232073
11581485624
122a4003a35
13167b4ac95
14b955d437
157300d318
hex4953da09

1230232073 has 24 divisors (see below), whose sum is σ = 1499601600. Its totient is φ = 1004388000.

The previous prime is 1230232057. The next prime is 1230232093. The reversal of 1230232073 is 3702320321.

It is not a de Polignac number, because 1230232073 - 24 = 1230232057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1230232043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280703 + ... + 285051.

It is an arithmetic number, because the mean of its divisors is an integer number (62483400).

Almost surely, 21230232073 is an apocalyptic number.

It is an amenable number.

1230232073 is a deficient number, since it is larger than the sum of its proper divisors (269369527).

1230232073 is a wasteful number, since it uses less digits than its factorization.

1230232073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4637 (or 4630 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 1230232073 is about 35074.6642606882. The cubic root of 1230232073 is about 1071.5086509789.

Adding to 1230232073 its reverse (3702320321), we get a palindrome (4932552394).

The spelling of 1230232073 in words is "one billion, two hundred thirty million, two hundred thirty-two thousand, seventy-three".

Divisors: 1 7 23 49 161 251 1127 1757 4349 5773 12299 30443 40411 100027 213101 282877 700189 1091599 4901323 7641193 25106777 53488351 175747439 1230232073