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20530401102125 = 532388322033671
BaseRepresentation
bin1001010101100000110110…
…10000111100100100101101
32200200200112221201012221122
410222300123100330210231
510142332230140232000
6111355311442310325
74216162323012125
oct452603320744455
980620487635848
1020530401102125
1165a5992217522
122376b199583a5
13b5c015932a25
1450d968c99c85
15259099923085
hex12ac1b43c92d

20530401102125 has 64 divisors (see below), whose sum is σ = 26785660981248. Its totient is φ = 15681032136000.

The previous prime is 20530401102109. The next prime is 20530401102161. The reversal of 20530401102125 is 52120110403502.

It is not a de Polignac number, because 20530401102125 - 24 = 20530401102109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20530401102094 and 20530401102103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5592589040 + ... + 5592592710.

It is an arithmetic number, because the mean of its divisors is an integer number (418525952832).

Almost surely, 220530401102125 is an apocalyptic number.

20530401102125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20530401102125 is a deficient number, since it is larger than the sum of its proper divisors (6255259879123).

20530401102125 is a wasteful number, since it uses less digits than its factorization.

20530401102125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6795 (or 6785 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 20530401102125 its reverse (52120110403502), we get a palindrome (72650511505627).

The spelling of 20530401102125 in words is "twenty trillion, five hundred thirty billion, four hundred one million, one hundred two thousand, one hundred twenty-five".

Divisors: 1 5 23 25 115 125 575 883 2203 2875 3671 4415 11015 18355 20309 22075 50669 55075 84433 91775 101545 110375 253345 275375 422165 458875 507725 1266725 1945249 2110825 2538625 3241493 6333625 8087213 9726245 10554125 16207465 40436065 44740727 48631225 74554339 81037325 186005899 202180325 223703635 243156125 372771695 405186625 930029495 1010901625 1118518175 1863858475 4650147475 5592590875 7141009079 9319292375 23250737375 35705045395 164243208817 178525226975 821216044085 892626134875 4106080220425 20530401102125