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20424162876100 = 225253285272
BaseRepresentation
bin1001010010011010111101…
…11110010001101011000100
32200022112100000202011100121
410221031132332101223010
510134112141144013400
6111234421512351324
74205411540001544
oct451153676215304
980275300664317
1020424162876100
116564925539925
12235a40a9a5544
13b51cb48a7ca9
1450876b537324
1525642cbe521a
hex12935ef91ac4

20424162876100 has 81 divisors (see below), whose sum is σ = 45177744244647. Its totient is φ = 8014580508480.

The previous prime is 20424162876037. The next prime is 20424162876107. The reversal of 20424162876100 is 167826142402.

The square root of 20424162876100 is 4519310.

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

It can be written as a sum of positive squares in 4 ways, for example, as 153853786564 + 20270309089536 = 392242^2 + 4502256^2 .

It is a super-2 number, since 2×204241628761002 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20424162876107) 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 26 ways as a sum of consecutive naturals, for example, 2395230037 + ... + 2395238563.

Almost surely, 220424162876100 is an apocalyptic number.

20424162876100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

20424162876100 is the 4519310-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20424162876100

20424162876100 is an abundant number, since it is smaller than the sum of its proper divisors (24753581368547).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20424162876100 is an frugal number, since it uses more digits than its factorization.

20424162876100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17174 (or 8587 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 20424162876100 in words is "twenty trillion, four hundred twenty-four billion, one hundred sixty-two million, eight hundred seventy-six thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 53 100 106 212 265 530 1060 1325 2650 2809 5300 5618 8527 11236 14045 17054 28090 34108 42635 56180 70225 85270 140450 170540 213175 280900 426350 451931 852700 903862 1807724 2259655 4519310 9038620 11298275 22596550 23952343 45193100 47904686 72709729 95809372 119761715 145419458 239523430 290838916 363548645 479046860 598808575 727097290 1197617150 1454194580 1817743225 2395234300 3635486450 3853615637 7270972900 7707231274 15414462548 19268078185 38536156370 77072312740 96340390925 192680781850 204241628761 385361563700 408483257522 816966515044 1021208143805 2042416287610 4084832575220 5106040719025 10212081438050 20424162876100