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20524554141 = 37135910711909
BaseRepresentation
bin10011000111010110…
…111101011110011101
31221222101120101020220
4103013112331132131
5314013241213031
613232344231553
71324421555160
oct230726753635
957871511226
1020524554141
118782637343
123b8976b5b9
131c21278cc0
14dc9c2dad7
15801d34596
hex4c75bd79d

20524554141 has 64 divisors (see below), whose sum is σ = 34575206400. Its totient is φ = 10542295296.

The previous prime is 20524554133. The next prime is 20524554173. The reversal of 20524554141 is 14145542502.

It is a happy number.

It is not a de Polignac number, because 20524554141 - 23 = 20524554133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20524554181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1717495 + ... + 1729403.

It is an arithmetic number, because the mean of its divisors is an integer number (540237600).

Almost surely, 220524554141 is an apocalyptic number.

20524554141 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20524554141 is a deficient number, since it is larger than the sum of its proper divisors (14050652259).

20524554141 is a wasteful number, since it uses less digits than its factorization.

20524554141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12098.

The product of its (nonzero) digits is 32000, while the sum is 33.

The spelling of 20524554141 in words is "twenty billion, five hundred twenty-four million, five hundred fifty-four thousand, one hundred forty-one".

Divisors: 1 3 7 13 21 39 59 91 107 177 273 321 413 749 767 1239 1391 2247 2301 4173 5369 6313 9737 11909 16107 18939 29211 35727 44191 82069 83363 132573 154817 246207 250089 464451 574483 702631 1083719 1274263 1723449 2107893 3251157 3822789 4918417 8919841 9134203 14755251 16565419 26759523 27402609 49696257 63939421 75181517 115957933 191818263 225544551 347873799 526270619 977359721 1578811857 2932079163 6841518047 20524554141