Search a number
-
+
20525315012307 = 327329229274209
BaseRepresentation
bin1001010101010111011000…
…00111000011011011010011
32200200012102111100002100200
410222223230013003123103
510142241321120343212
6111353111033550243
74215622303656000
oct452535407033323
980605374302320
1020525315012307
1165a3812259a06
122375b3a575383
13b5b6b4cc0c21
1450d6055c88a7
15258d9d1636dc
hex12aaec1c36d3

20525315012307 has 48 divisors (see below), whose sum is σ = 35766776760000. Its totient is φ = 11324311681536.

The previous prime is 20525315012269. The next prime is 20525315012317. The reversal of 20525315012307 is 70321051352502.

20525315012307 is a `hidden beast` number, since 2 + 0 + 5 + 25 + 315 + 0 + 12 + 307 = 666.

It is not a de Polignac number, because 20525315012307 - 218 = 20525314750163 is a prime.

It is a super-2 number, since 2×205253150123072 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20525315012317) 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 47 ways as a sum of consecutive naturals, for example, 114547582 + ... + 114726627.

It is an arithmetic number, because the mean of its divisors is an integer number (745141182500).

Almost surely, 220525315012307 is an apocalyptic number.

20525315012307 is a deficient number, since it is larger than the sum of its proper divisors (15241461747693).

20525315012307 is a wasteful number, since it uses less digits than its factorization.

20525315012307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229274265 (or 229274248 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

Adding to 20525315012307 its reverse (70321051352502), we get a palindrome (90846366364809).

The spelling of 20525315012307 in words is "twenty trillion, five hundred twenty-five billion, three hundred fifteen million, twelve thousand, three hundred seven".

Divisors: 1 3 7 9 21 29 49 63 87 147 203 261 343 441 609 1029 1421 1827 3087 4263 9947 12789 29841 89523 229274209 687822627 1604919463 2063467881 4814758389 6648952061 11234436241 14444275167 19946856183 33703308723 46542664427 59840568549 78641053687 101109926169 139627993281 235923161061 325798650989 418883979843 707769483183 977395952967 2280590556923 2932187858901 6841771670769 20525315012307