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11401312420 = 2251737194583
BaseRepresentation
bin10101001111001001…
…00011100010100100
31002102120120200101101
422213210203202210
5141322213444140
65123201405444
7552351361621
oct124744434244
932376520341
1011401312420
11492081a853
122262339884
1310c9108414
147a22d7348
1546ae1199a
hex2a79238a4

11401312420 has 48 divisors (see below), whose sum is σ = 24119907840. Its totient is φ = 4526869376.

The previous prime is 11401312411. The next prime is 11401312453. The reversal of 11401312420 is 2421310411.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2485449 + ... + 2490031.

It is an arithmetic number, because the mean of its divisors is an integer number (502498080).

Almost surely, 211401312420 is an apocalyptic number.

11401312420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11401312420 is an abundant number, since it is smaller than the sum of its proper divisors (12718595420).

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

11401312420 is a wasteful number, since it uses less digits than its factorization.

11401312420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484 (or 5482 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11401312420 its reverse (2421310411), we get a palindrome (13822622831).

The spelling of 11401312420 in words is "eleven billion, four hundred one million, three hundred twelve thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 173 346 692 719 865 1438 1730 2876 3460 3595 4583 7190 9166 14380 18332 22915 45830 91660 124387 248774 497548 621935 792859 1243870 1585718 2487740 3171436 3295177 3964295 6590354 7928590 13180708 15857180 16475885 32951770 65903540 570065621 1140131242 2280262484 2850328105 5700656210 11401312420