Search a number
-
+
102013231030231 = 649211571344111
BaseRepresentation
bin10111001100011111001110…
…011001011101111111010111
3111101012100222110200100121111
4113030133032121131333113
5101332341044120431411
61000544121550355451
730326132651431423
oct2714371631357727
9441170873610544
10102013231030231
112a560628489894
12b536a207bbb87
1344bca638ac191
141b296769a9b83
15bbd8e9137721
hex5cc7ce65dfd7

102013231030231 has 4 divisors (see below), whose sum is σ = 102014802439264. Its totient is φ = 102011659621200.

The previous prime is 102013231030159. The next prime is 102013231030247. The reversal of 102013231030231 is 132030132310201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102013231030231 - 231 = 102011083546583 is a prime.

It is a super-2 number, since 2×1020132310302312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102013231090231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785607135 + ... + 785736976.

It is an arithmetic number, because the mean of its divisors is an integer number (25503700609816).

Almost surely, 2102013231030231 is an apocalyptic number.

102013231030231 is a deficient number, since it is larger than the sum of its proper divisors (1571409033).

102013231030231 is an equidigital number, since it uses as much as digits as its factorization.

102013231030231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571409032.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 102013231030231 its reverse (132030132310201), we get a palindrome (234043363340432).

The spelling of 102013231030231 in words is "one hundred two trillion, thirteen billion, two hundred thirty-one million, thirty thousand, two hundred thirty-one".

Divisors: 1 64921 1571344111 102013231030231