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531052531053 = 31124912979541
BaseRepresentation
bin1111011101001010011…
…00101000110101101101
31212202201222000201210020
413232211030220311231
532200043421443203
61043543454432353
753236656015012
oct7564514506555
91782658021706
10531052531053
11195244344700
1286b085026b9
133b1025b34c5
141b9bb371709
15dc31d68153
hex7ba5328d6d

531052531053 has 24 divisors (see below), whose sum is σ = 779877241248. Its totient is φ = 321194412000.

The previous prime is 531052531013. The next prime is 531052531067. The reversal of 531052531053 is 350135250135.

It is a happy number.

It is not a de Polignac number, because 531052531053 - 28 = 531052530797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531052531003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1311538 + ... + 1668003.

It is an arithmetic number, because the mean of its divisors is an integer number (32494885052).

Almost surely, 2531052531053 is an apocalyptic number.

It is an amenable number.

531052531053 is a deficient number, since it is larger than the sum of its proper divisors (248824710195).

531052531053 is a wasteful number, since it uses less digits than its factorization.

531052531053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980057 (or 2980046 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 33.

Adding to 531052531053 its reverse (350135250135), we get a palindrome (881187781188).

The spelling of 531052531053 in words is "five hundred thirty-one billion, fifty-two million, five hundred thirty-one thousand, fifty-three".

Divisors: 1 3 11 33 121 363 491 1473 5401 16203 59411 178233 2979541 8938623 32774951 98324853 360524461 1081573383 1462954631 4388863893 16092500941 48277502823 177017510351 531052531053