Search a number
-
+
120331132012 = 22721357781847
BaseRepresentation
bin111000000010001001…
…0110101110001101100
3102111121002020212020001
41300010102311301230
53432414232211022
6131140201434044
711456626513600
oct1600422656154
9374532225201
10120331132012
1147039872543
121b3a279b924
13b468995480
145b77301500
1531e40b3b27
hex1c044b5c6c

120331132012 has 72 divisors (see below), whose sum is σ = 264263292384. Its totient is φ = 47520442368.

The previous prime is 120331132007. The next prime is 120331132021. The reversal of 120331132012 is 210231133021.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1429273 + ... + 1511119.

Almost surely, 2120331132012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120331132012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132131646192).

120331132012 is an abundant number, since it is smaller than the sum of its proper divisors (143932160372).

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

120331132012 is a wasteful number, since it uses less digits than its factorization.

120331132012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82455 (or 82446 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 120331132012 its reverse (210231133021), we get a palindrome (330562265033).

The spelling of 120331132012 in words is "one hundred twenty billion, three hundred thirty-one million, one hundred thirty-two thousand, twelve".

Divisors: 1 2 4 7 13 14 26 28 49 52 91 98 182 196 364 577 637 1154 1274 2308 2548 4039 7501 8078 15002 16156 28273 30004 52507 56546 81847 105014 113092 163694 210028 327388 367549 572929 735098 1064011 1145858 1470196 2128022 2291716 4010503 4256044 7448077 8021006 14896154 16042012 29792308 47225719 52136539 94451438 104273078 188902876 208546156 330580033 613934347 661160066 1227868694 1322320132 2314060231 2455737388 4297540429 4628120462 8595080858 9256240924 17190161716 30082783003 60165566006 120331132012