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20524541031 = 3217303744171
BaseRepresentation
bin10011000111010110…
…111010010001100111
31221222101112201021100
4103013112322101213
5314013240303111
613232344051143
71324421502021
oct230726722147
957871481240
1020524541031
118782628505
123b89763ab3
131c21273047
14dc9c29011
15801d30756
hex4c75ba467

20524541031 has 24 divisors (see below), whose sum is σ = 31401521424. Its totient is φ = 12873611520.

The previous prime is 20524540979. The next prime is 20524541033. The reversal of 20524541031 is 13014542502.

20524541031 is a `hidden beast` number, since 2 + 0 + 5 + 245 + 410 + 3 + 1 = 666.

It is not a de Polignac number, because 20524541031 - 225 = 20490986599 is a prime.

It is a super-2 number, since 2×205245410312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20524540986 and 20524541004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20524541033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442576 + ... + 486746.

It is an arithmetic number, because the mean of its divisors is an integer number (1308396726).

Almost surely, 220524541031 is an apocalyptic number.

20524541031 is a deficient number, since it is larger than the sum of its proper divisors (10876980393).

20524541031 is a wasteful number, since it uses less digits than its factorization.

20524541031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47231 (or 47228 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 20524541031 in words is "twenty billion, five hundred twenty-four million, five hundred forty-one thousand, thirty-one".

Divisors: 1 3 9 17 51 153 3037 9111 27333 44171 51629 132513 154887 397539 464661 750907 2252721 6758163 134147327 402441981 1207325943 2280504559 6841513677 20524541031