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20533114525 = 5271128337691
BaseRepresentation
bin10011000111110111…
…100111011010011101
31221222222200021220011
4103013313213122131
5314022434131100
613233251523221
71324554410440
oct230767473235
957888607804
1020533114525
118787453940
123b905b9511
131c22c85511
14dcb01b657
15802975bba
hex4c7de769d

20533114525 has 48 divisors (see below), whose sum is σ = 31856675328. Its totient is φ = 12754296000.

The previous prime is 20533114489. The next prime is 20533114531. The reversal of 20533114525 is 52541133502.

It is not a de Polignac number, because 20533114525 - 27 = 20533114397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 525930 + ... + 563620.

It is an arithmetic number, because the mean of its divisors is an integer number (663680736).

Almost surely, 220533114525 is an apocalyptic number.

20533114525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20533114525 is a deficient number, since it is larger than the sum of its proper divisors (11323560803).

20533114525 is a wasteful number, since it uses less digits than its factorization.

20533114525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38002 (or 37997 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 20533114525 in words is "twenty billion, five hundred thirty-three million, one hundred fourteen thousand, five hundred twenty-five".

Divisors: 1 5 7 11 25 35 55 77 175 275 283 385 1415 1925 1981 3113 7075 9905 15565 21791 37691 49525 77825 108955 188455 263837 414601 544775 942275 1319185 2073005 2902207 6595925 10365025 10666553 14511035 53332765 72555175 74665871 117332083 266663825 373329355 586660415 821324581 1866646775 2933302075 4106622905 20533114525