Search a number
-
+
230233311201021 = 376744437067007
BaseRepresentation
bin110100010110010101011110…
…101110101100011011111101
31010012012002102022111211210220
4310112111132232230123331
5220134120310131413041
62133355420101251553
766331544036343132
oct6426253656543375
91105162368454726
10230233311201021
11673a54430039a7
12219a4912103bb9
139b60ba60b6b1b
1440bd4cd190589
151b93d6b97cd66
hexd1655ebac6fd

230233311201021 has 4 divisors (see below), whose sum is σ = 306977748268032. Its totient is φ = 153488874134012.

The previous prime is 230233311201007. The next prime is 230233311201059. The reversal of 230233311201021 is 120102113332032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230233311201021 - 29 = 230233311200509 is a prime.

It is a super-2 number, since 2×2302333112010212 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230233311200982 and 230233311201000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230233311201071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38372218533501 + ... + 38372218533506.

It is an arithmetic number, because the mean of its divisors is an integer number (76744437067008).

Almost surely, 2230233311201021 is an apocalyptic number.

It is an amenable number.

230233311201021 is a deficient number, since it is larger than the sum of its proper divisors (76744437067011).

230233311201021 is an equidigital number, since it uses as much as digits as its factorization.

230233311201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76744437067010.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 230233311201021 its reverse (120102113332032), we get a palindrome (350335424533053).

The spelling of 230233311201021 in words is "two hundred thirty trillion, two hundred thirty-three billion, three hundred eleven million, two hundred one thousand, twenty-one".

Divisors: 1 3 76744437067007 230233311201021