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65244541031 = 311541387781
BaseRepresentation
bin111100110000111000…
…001011000001100111
320020102000010002112122
4330300320023001213
52032110100303111
645550052540155
74466551306535
oct746070130147
9206360102478
1065244541031
112574092a39a
121078a32165b
1361ca1697c7
14322d20d155
151a6cdb0cdb
hexf30e0b067

65244541031 has 8 divisors (see below), whose sum is σ = 65575487328. Its totient is φ = 64914372000.

The previous prime is 65244541013. The next prime is 65244541051. The reversal of 65244541031 is 13014544256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65244541031 - 26 = 65244540967 is a prime.

It is a super-2 number, since 2×652445410312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65244540982 and 65244541000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65244541051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25640 + ... + 362141.

It is an arithmetic number, because the mean of its divisors is an integer number (8196935916).

Almost surely, 265244541031 is an apocalyptic number.

65244541031 is a deficient number, since it is larger than the sum of its proper divisors (330946297).

65244541031 is a wasteful number, since it uses less digits than its factorization.

65244541031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388633.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 65244541031 in words is "sixty-five billion, two hundred forty-four million, five hundred forty-one thousand, thirty-one".

Divisors: 1 311 541 168251 387781 120599891 209789521 65244541031