Search a number
-
+
1000023223 = 9769102367
BaseRepresentation
bin111011100110110…
…010010010110111
32120200201102222011
4323212302102313
54022001220343
6243121545051
733532025413
oct7346622267
92520642864
101000023223
1147353a281
1223aaa5187
1312c247924
1496b55d43
155cbd829d
hex3b9b24b7

1000023223 has 4 divisors (see below), whose sum is σ = 1000135360. Its totient is φ = 999911088.

The previous prime is 1000023197. The next prime is 1000023229. The reversal of 1000023223 is 3223200001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3223200001 = 7460457143.

It is a cyclic number.

It is not a de Polignac number, because 1000023223 - 213 = 1000015031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000023229) 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, 41415 + ... + 60952.

It is an arithmetic number, because the mean of its divisors is an integer number (250033840).

Almost surely, 21000023223 is an apocalyptic number.

1000023223 is a deficient number, since it is larger than the sum of its proper divisors (112137).

1000023223 is an equidigital number, since it uses as much as digits as its factorization.

1000023223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112136.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1000023223 is about 31623.1437874225. The cubic root of 1000023223 is about 1000.0077409401.

Adding to 1000023223 its reverse (3223200001), we get a palindrome (4223223224).

The spelling of 1000023223 in words is "one billion, twenty-three thousand, two hundred twenty-three".

Divisors: 1 9769 102367 1000023223