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531052245342 = 232110977265847
BaseRepresentation
bin1111011101001010010…
…11100011000101011110
31212202201221111012212100
413232211023203011132
532200043333322332
61043543444345530
753236653415023
oct7564513430536
91782657435770
10531052245342
11195244169a83
1286b083a52a6
133b102513448
141b9bb2d954a
15dc31d0d67c
hex7ba52e315e

531052245342 has 24 divisors (see below), whose sum is σ = 1150627894416. Its totient is φ = 177015154176.

The previous prime is 531052245277. The next prime is 531052245343. The reversal of 531052245342 is 243542250135.

531052245342 is a `hidden beast` number, since 53 + 1 + 0 + 52 + 24 + 534 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 531052245297 and 531052245306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531052245343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1864663 + ... + 2130509.

It is an arithmetic number, because the mean of its divisors is an integer number (47942828934).

Almost surely, 2531052245342 is an apocalyptic number.

531052245342 is an abundant number, since it is smaller than the sum of its proper divisors (619575649074).

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

531052245342 is a wasteful number, since it uses less digits than its factorization.

531052245342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376832 (or 376829 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 531052245342 its reverse (243542250135), we get a palindrome (774594495477).

The spelling of 531052245342 in words is "five hundred thirty-one billion, fifty-two million, two hundred forty-five thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 110977 221954 265847 332931 531694 665862 797541 998793 1595082 1997586 2392623 4785246 29502902519 59005805038 88508707557 177017415114 265526122671 531052245342