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20524300130 = 2525714335573
BaseRepresentation
bin10011000111010101…
…111111011101100010
31221222101002110211002
4103013111333131202
5314013210101010
613232334552002
71324416446465
oct230725773542
957871073732
1020524300130
118782483514
123b89668602
131c211ba4b9
14dc9ba52dc
15801cd41a5
hex4c757f762

20524300130 has 32 divisors (see below), whose sum is σ = 37120030704. Its totient is φ = 8170602496.

The previous prime is 20524300127. The next prime is 20524300177. The reversal of 20524300130 is 3100342502.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 13310006161 + 7214293969 = 115369^2 + 84937^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3680024 + ... + 3685596.

Almost surely, 220524300130 is an apocalyptic number.

20524300130 is a deficient number, since it is larger than the sum of its proper divisors (16595730574).

20524300130 is a wasteful number, since it uses less digits than its factorization.

20524300130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 20524300130 its reverse (3100342502), we get a palindrome (23624642632).

The spelling of 20524300130 in words is "twenty billion, five hundred twenty-four million, three hundred thousand, one hundred thirty".

Divisors: 1 2 5 10 257 514 1285 1433 2570 2866 5573 7165 11146 14330 27865 55730 368281 736562 1432261 1841405 2864522 3682810 7161305 7986109 14322610 15972218 39930545 79861090 2052430013 4104860026 10262150065 20524300130