Search a number
-
+
102231023 = 580117623
BaseRepresentation
bin1100001011111…
…10101111101111
321010100212121012
412011332233233
5202132343043
614051055435
72350643426
oct605765757
9233325535
10102231023
1152785754
122a2a157b
131824513b
14d8122bd
158e95a18
hex617ebef

102231023 has 4 divisors (see below), whose sum is σ = 102254448. Its totient is φ = 102207600.

The previous prime is 102230981. The next prime is 102231049. The reversal of 102231023 is 320132201.

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: 320132201 = 1734118461.

It is a cyclic number.

It is not a de Polignac number, because 102231023 - 28 = 102230767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102230989 and 102231007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102231083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3011 + ... + 14612.

It is an arithmetic number, because the mean of its divisors is an integer number (25563612).

Almost surely, 2102231023 is an apocalyptic number.

102231023 is a deficient number, since it is larger than the sum of its proper divisors (23425).

102231023 is an equidigital number, since it uses as much as digits as its factorization.

102231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23424.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 102231023 is about 10110.9358122777. The cubic root of 102231023 is about 467.5853569825.

Adding to 102231023 its reverse (320132201), we get a palindrome (422363224).

The spelling of 102231023 in words is "one hundred two million, two hundred thirty-one thousand, twenty-three".

Divisors: 1 5801 17623 102231023