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1232030121 = 372316315649
BaseRepresentation
bin100100101101111…
…0100100110101001
310011212021121121020
41021123310212221
510010344430441
6322130403053
742350040360
oct11133644651
93155247536
101232030121
115824a3513
122a4730489
1316832a50a
14b98aa7d7
1573265e66
hex496f49a9

1232030121 has 32 divisors (see below), whose sum is σ = 1971148800. Its totient is φ = 669233664.

The previous prime is 1232030099. The next prime is 1232030123. The reversal of 1232030121 is 1210302321.

It is not a de Polignac number, because 1232030121 - 25 = 1232030089 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1232030121.

It is not an unprimeable number, because it can be changed into a prime (1232030123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70905 + ... + 86553.

It is an arithmetic number, because the mean of its divisors is an integer number (61598400).

Almost surely, 21232030121 is an apocalyptic number.

It is an amenable number.

1232030121 is a deficient number, since it is larger than the sum of its proper divisors (739118679).

1232030121 is a wasteful number, since it uses less digits than its factorization.

1232030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15845.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1232030121 is about 35100.2866227614. The cubic root of 1232030121 is about 1072.0304186925.

Adding to 1232030121 its reverse (1210302321), we get a palindrome (2442332442).

The spelling of 1232030121 in words is "one billion, two hundred thirty-two million, thirty thousand, one hundred twenty-one".

Divisors: 1 3 7 21 23 69 161 163 483 489 1141 3423 3749 11247 15649 26243 46947 78729 109543 328629 359927 1079781 2519489 2550787 7558467 7652361 17855509 53566527 58668101 176004303 410676707 1232030121