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20360142506451 = 31123237611128949
BaseRepresentation
bin1001010000100011101110…
…00011111100100111010011
32200002102002100010102020210
410220101313003330213103
510132040032440201301
6111145153105535203
74200654211561536
oct450216703744723
980072070112223
1020360142506451
11653a762725620
122349b22644503
13b48c51246967
14505616b4aa1d
15254932546ad6
hex1284770fc9d3

20360142506451 has 32 divisors (see below), whose sum is σ = 30903678604800. Its totient is φ = 11802473971200.

The previous prime is 20360142506413. The next prime is 20360142506453. The reversal of 20360142506451 is 15460524106302.

It is not a de Polignac number, because 20360142506451 - 242 = 15962095995347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20360142506453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17470125 + ... + 18599073.

It is an arithmetic number, because the mean of its divisors is an integer number (965739956400).

Almost surely, 220360142506451 is an apocalyptic number.

20360142506451 is a deficient number, since it is larger than the sum of its proper divisors (10543536098349).

20360142506451 is a wasteful number, since it uses less digits than its factorization.

20360142506451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152747.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 20360142506451 in words is "twenty trillion, three hundred sixty billion, one hundred forty-two million, five hundred six thousand, four hundred fifty-one".

Divisors: 1 3 11 23 33 69 253 759 23761 71283 261371 546503 784113 1128949 1639509 3386847 6011533 12418439 18034599 25965827 37255317 77897481 285624097 856872291 26824957189 80474871567 295074529079 616974015347 885223587237 1850922046041 6786714168817 20360142506451