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32531241040 = 245406640513
BaseRepresentation
bin11110010011000000…
…110101100001010000
310002222011021021022021
4132103000311201100
51013110444203130
622540013221224
72231103662224
oct362300654120
9102864237267
1032531241040
1112884045981
12637a791814
1330b591236c
1418086ac784
15ca5e7637a
hex793035850

32531241040 has 20 divisors (see below), whose sum is σ = 75635135604. Its totient is φ = 13012496384.

The previous prime is 32531241031. The next prime is 32531241143. The reversal of 32531241040 is 4014213523.

It can be written as a sum of positive squares in 2 ways, for example, as 20716420624 + 11814820416 = 143932^2 + 108696^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 32531240996 and 32531241014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203320177 + ... + 203320336.

Almost surely, 232531241040 is an apocalyptic number.

It is an amenable number.

32531241040 is an abundant number, since it is smaller than the sum of its proper divisors (43103894564).

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

32531241040 is a wasteful number, since it uses less digits than its factorization.

32531241040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406640526 (or 406640520 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 32531241040 its reverse (4014213523), we get a palindrome (36545454563).

The spelling of 32531241040 in words is "thirty-two billion, five hundred thirty-one million, two hundred forty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 406640513 813281026 1626562052 2033202565 3253124104 4066405130 6506248208 8132810260 16265620520 32531241040