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523531102031 = 7591513183777
BaseRepresentation
bin1111001111001001110…
…00101010011101001111
31212001022210010112211222
413213210320222131033
532034142430231111
61040301252233555
752552405641350
oct7474470523517
91761283115758
10523531102031
11192034727763
128556960b8bb
133a4a42617a2
141b4a6481d27
15d9418a17db
hex79e4e2a74f

523531102031 has 16 divisors (see below), whose sum is σ = 608509774080. Its totient is φ = 441100746240.

The previous prime is 523531101949. The next prime is 523531102079. The reversal of 523531102031 is 130201135325.

It is a de Polignac number, because none of the positive numbers 2k-523531102031 is a prime.

It is a super-2 number, since 2×5235311020312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523531101031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6207215 + ... + 6290991.

It is an arithmetic number, because the mean of its divisors is an integer number (38031860880).

Almost surely, 2523531102031 is an apocalyptic number.

523531102031 is a deficient number, since it is larger than the sum of its proper divisors (84978672049).

523531102031 is a wasteful number, since it uses less digits than its factorization.

523531102031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98974.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 523531102031 its reverse (130201135325), we get a palindrome (653732237356).

The spelling of 523531102031 in words is "five hundred twenty-three billion, five hundred thirty-one million, one hundred two thousand, thirty-one".

Divisors: 1 7 59 413 15131 83777 105917 586439 892729 4942843 6249103 34599901 1267629787 8873408509 74790157433 523531102031