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20276336025 = 32521128632
BaseRepresentation
bin10010111000100100…
…000101010110011001
31221100002111121000100
4102320210011112121
5313011220223100
613152000130013
71315316004201
oct227044052631
957302447010
1020276336025
118665510400
123b1a606909
131bb1a0b68a
14da4c99401
157da153400
hex4b8905599

20276336025 has 81 divisors (see below), whose sum is σ = 39965183167. Its totient is φ = 9819559200.

The previous prime is 20276336023. The next prime is 20276336051. The reversal of 20276336025 is 52063367202.

It is a happy number.

The square root of 20276336025 is 142395.

It is a perfect power (a square), and thus also a powerful number.

20276336025 is a `hidden beast` number, since 2 + 0 + 276 + 3 + 360 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7299480969 + 12976855056 = 85437^2 + 113916^2 .

It is not a de Polignac number, because 20276336025 - 21 = 20276336023 is a prime.

It is a super-2 number, since 2×202763360252 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20276336023) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 23494744 + ... + 23495606.

Almost surely, 220276336025 is an apocalyptic number.

20276336025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20276336025 is the 142395-th square number.

20276336025 is the 71198-th centered octagonal number.

It is an amenable number.

20276336025 is a deficient number, since it is larger than the sum of its proper divisors (19688847142).

20276336025 is an equidigital number, since it uses as much as digits as its factorization.

20276336025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

Multiplying 20276336025 by its sum of digits (36), we get a square (729948096900 = 8543702).

The spelling of 20276336025 in words is "twenty billion, two hundred seventy-six million, three hundred thirty-six thousand, twenty-five".

Divisors: 1 3 5 9 11 15 25 33 45 55 75 99 121 165 225 275 363 495 605 825 863 1089 1815 2475 2589 3025 4315 5445 7767 9075 9493 12945 21575 27225 28479 38835 47465 64725 85437 104423 142395 194175 237325 313269 427185 522115 711975 744769 939807 1566345 2135925 2234307 2610575 3723845 4699035 6702921 7831725 8192459 11171535 18619225 23495175 24577377 33514605 40962295 55857675 73732131 90117049 122886885 167573025 204811475 270351147 368660655 450585245 614434425 811053441 1351755735 1843303275 2252926225 4055267205 6758778675 20276336025