Search a number
-
+
20654441336740 = 2252956476306199
BaseRepresentation
bin1001011001000111111001…
…01000111000111110100100
32201010112201112022000102011
410230203330220320332210
510201400243440233430
6111532304103124004
74231143211424161
oct454437450707644
981115645260364
1020654441336740
116643554746712
122396b76743604
13b6a922b88063
14515974a2b068
1525c40944a22a
hex12c8fca38fa4

20654441336740 has 48 divisors (see below), whose sum is σ = 44877946176000. Its totient is φ = 7975473835392.

The previous prime is 20654441336707. The next prime is 20654441336741. The reversal of 20654441336740 is 4763314445602.

It is not an unprimeable number, because it can be changed into a prime (20654441336741) 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 15 ways as a sum of consecutive naturals, for example, 122161 + ... + 6428359.

It is an arithmetic number, because the mean of its divisors is an integer number (934957212000).

Almost surely, 220654441336740 is an apocalyptic number.

20654441336740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20654441336740 is an abundant number, since it is smaller than the sum of its proper divisors (24223504839260).

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

20654441336740 is a wasteful number, since it uses less digits than its factorization.

20654441336740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311884 (or 6311882 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 49.

The spelling of 20654441336740 in words is "twenty trillion, six hundred fifty-four billion, four hundred forty-one million, three hundred thirty-six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 5647 11294 22588 28235 56470 112940 163763 327526 655052 818815 1637630 3275260 6306199 12612398 25224796 31530995 63061990 126123980 182879771 365759542 731519084 914398855 1828797710 3657595420 35611105753 71222211506 142444423012 178055528765 356111057530 712222115060 1032722066837 2065444133674 4130888267348 5163610334185 10327220668370 20654441336740