Search a number
-
+
231545401043014 = 2115772700521507
BaseRepresentation
bin110100101001011011011101…
…011000001110100001000110
31010100211112011010000220102201
4310221123131120032201012
5220322114440131334024
62140242253324225114
766525413614105342
oct6451333530164106
91110745133026381
10231545401043014
1167860942570343
1221b7707239b19a
139c27839b40b06
144126c00262622
151bb8061e6d744
hexd296dd60e846

231545401043014 has 4 divisors (see below), whose sum is σ = 347318101564524. Its totient is φ = 115772700521506.

The previous prime is 231545401043003. The next prime is 231545401043039. The reversal of 231545401043014 is 410340104545132.

It is a happy number.

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

It is a super-2 number, since 2×2315454010430142 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57886350260752 + ... + 57886350260755.

It is an arithmetic number, because the mean of its divisors is an integer number (86829525391131).

Almost surely, 2231545401043014 is an apocalyptic number.

231545401043014 is a deficient number, since it is larger than the sum of its proper divisors (115772700521510).

231545401043014 is a wasteful number, since it uses less digits than its factorization.

231545401043014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115772700521509.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 231545401043014 its reverse (410340104545132), we get a palindrome (641885505588146).

The spelling of 231545401043014 in words is "two hundred thirty-one trillion, five hundred forty-five billion, four hundred one million, forty-three thousand, fourteen".

Divisors: 1 2 115772700521507 231545401043014