Search a number
-
+
102311023 = 287935537
BaseRepresentation
bin1100001100100…
…10010001101111
321010111221100011
412012102101233
5202142423043
614052514051
72351425603
oct606222157
9233457304
10102311023
115282a871
122a31b927
1318272689
14d833503
158eae59d
hex619246f

102311023 has 4 divisors (see below), whose sum is σ = 102349440. Its totient is φ = 102272608.

The previous prime is 102311003. The next prime is 102311059. The reversal of 102311023 is 320113201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320113201 = 2339136859.

It is a cyclic number.

It is not a de Polignac number, because 102311023 - 217 = 102179951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102310994 and 102311012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102311003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14890 + ... + 20647.

It is an arithmetic number, because the mean of its divisors is an integer number (25587360).

Almost surely, 2102311023 is an apocalyptic number.

102311023 is a deficient number, since it is larger than the sum of its proper divisors (38417).

102311023 is an equidigital number, since it uses as much as digits as its factorization.

102311023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38416.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 102311023 is about 10114.8911511692. The cubic root of 102311023 is about 467.7072934692.

Adding to 102311023 its reverse (320113201), we get a palindrome (422424224).

The spelling of 102311023 in words is "one hundred two million, three hundred eleven thousand, twenty-three".

Divisors: 1 2879 35537 102311023