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13401021200 = 245274786079
BaseRepresentation
bin11000111101100001…
…10101101100010000
31021120221101102010112
430132300311230100
5204421130134300
610053434220452
7653042541440
oct143660655420
937527342115
1013401021200
115757588636
12271bb84728
1313574b0058
14911b18120
15536767e35
hex31ec35b10

13401021200 has 60 divisors (see below), whose sum is σ = 36795383040. Its totient is φ = 4594634880.

The previous prime is 13401021187. The next prime is 13401021203. The reversal of 13401021200 is 212010431.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (13401021203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2390240 + ... + 2395839.

It is an arithmetic number, because the mean of its divisors is an integer number (613256384).

Almost surely, 213401021200 is an apocalyptic number.

13401021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13401021200 is an abundant number, since it is smaller than the sum of its proper divisors (23394361840).

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

13401021200 is a wasteful number, since it uses less digits than its factorization.

13401021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786104 (or 4786093 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 13401021200 its reverse (212010431), we get a palindrome (13613031631).

The spelling of 13401021200 in words is "thirteen billion, four hundred one million, twenty-one thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 35 40 50 56 70 80 100 112 140 175 200 280 350 400 560 700 1400 2800 4786079 9572158 19144316 23930395 33502553 38288632 47860790 67005106 76577264 95721580 119651975 134010212 167512765 191443160 239303950 268020424 335025530 382886320 478607900 536040848 670051060 837563825 957215800 1340102120 1675127650 1914431600 2680204240 3350255300 6700510600 13401021200