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20510232532 = 2242112179473
BaseRepresentation
bin10011000110100000…
…010100111111010100
31221221101121202200221
4103012200110333110
5314001104420112
613231113244124
71324156046206
oct230640247724
957841552627
1020510232532
1187755452a9
123b84a03644
131c1b30338a
14dc7d82776
15800955e07
hex4c6814fd4

20510232532 has 12 divisors (see below), whose sum is σ = 35978166196. Its totient is φ = 10230756480.

The previous prime is 20510232527. The next prime is 20510232541. The reversal of 20510232532 is 23523201502.

It can be written as a sum of positive squares in 2 ways, for example, as 7955926416 + 12554306116 = 89196^2 + 112046^2 .

It is a super-2 number, since 2×205102325322 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20510232497 and 20510232506.

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, 6088053 + ... + 6091420.

Almost surely, 220510232532 is an apocalyptic number.

It is an amenable number.

20510232532 is a deficient number, since it is larger than the sum of its proper divisors (15467933664).

20510232532 is a wasteful number, since it uses less digits than its factorization.

20510232532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12179898 (or 12179896 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 20510232532 in words is "twenty billion, five hundred ten million, two hundred thirty-two thousand, five hundred thirty-two".

Divisors: 1 2 4 421 842 1684 12179473 24358946 48717892 5127558133 10255116266 20510232532