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31344304532 = 2219958076781
BaseRepresentation
bin11101001100010001…
…000010000110010100
32222220102211122111212
4131030101002012110
51003143120221112
622222133120552
72156512123022
oct351421020624
988812748455
1031344304532
1112325051a12
1260a9189158
132c56a42c78
141734bbd712
15c36b6b522
hex74c442194

31344304532 has 24 divisors (see below), whose sum is σ = 55145798400. Its totient is φ = 15588413280.

The previous prime is 31344304531. The next prime is 31344304583. The reversal of 31344304532 is 23540344313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31344304531) 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 7 ways as a sum of consecutive naturals, for example, 4618982 + ... + 4625762.

It is an arithmetic number, because the mean of its divisors is an integer number (2297741600).

Almost surely, 231344304532 is an apocalyptic number.

It is an amenable number.

31344304532 is a deficient number, since it is larger than the sum of its proper divisors (23801493868).

31344304532 is a wasteful number, since it uses less digits than its factorization.

31344304532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12791 (or 12789 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 31344304532 its reverse (23540344313), we get a palindrome (54884648845).

The spelling of 31344304532 in words is "thirty-one billion, three hundred forty-four million, three hundred four thousand, five hundred thirty-two".

Divisors: 1 2 4 199 398 796 5807 6781 11614 13562 23228 27124 1155593 1349419 2311186 2698838 4622372 5397676 39377267 78754534 157509068 7836076133 15672152266 31344304532