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53313450340 = 2252665672517
BaseRepresentation
bin110001101001101110…
…101011000101100100
312002121111122212222211
4301221232223011210
51333141220402330
640254124133204
73565104564553
oct615156530544
9162544585884
1053313450340
1120679064367
12a3ba697204
135048381227
14281a80bd9a
1515c0702d2a
hexc69bab164

53313450340 has 12 divisors (see below), whose sum is σ = 111958245756. Its totient is φ = 21325380128.

The previous prime is 53313450317. The next prime is 53313450343. The reversal of 53313450340 is 4305431335.

53313450340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 14586359076 + 38727091264 = 120774^2 + 196792^2 .

It is a super-2 number, since 2×533134503402 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53313450343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332836239 + ... + 1332836278.

It is an arithmetic number, because the mean of its divisors is an integer number (9329853813).

Almost surely, 253313450340 is an apocalyptic number.

It is an amenable number.

53313450340 is an abundant number, since it is smaller than the sum of its proper divisors (58644795416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53313450340 is a wasteful number, since it uses less digits than its factorization.

53313450340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665672526 (or 2665672524 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 53313450340 its reverse (4305431335), we get a palindrome (57618881675).

The spelling of 53313450340 in words is "fifty-three billion, three hundred thirteen million, four hundred fifty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 2665672517 5331345034 10662690068 13328362585 26656725170 53313450340