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13368706280 = 2351943140813
BaseRepresentation
bin11000111001101011…
…00100010011101000
31021111200120122101122
430130311210103220
5204334342100110
610050321434412
7652201062026
oct143465442350
937450518348
1013368706280
115740316996
12271119ba08
1313508a74b7
1490b705716
155339d3255
hex31cd644e8

13368706280 has 64 divisors (see below), whose sum is σ = 31736966400. Its totient is φ = 5054158080.

The previous prime is 13368706271. The next prime is 13368706297. The reversal of 13368706280 is 8260786331.

It is a super-2 number, since 2×133687062802 (a number of 21 digits) contains 22 as substring.

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, 307154 + ... + 347966.

It is an arithmetic number, because the mean of its divisors is an integer number (495890100).

Almost surely, 213368706280 is an apocalyptic number.

13368706280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13368706280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15868483200).

13368706280 is an abundant number, since it is smaller than the sum of its proper divisors (18368260120).

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

13368706280 is a wasteful number, since it uses less digits than its factorization.

13368706280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41274 (or 41270 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 13368706280 in words is "thirteen billion, three hundred sixty-eight million, seven hundred six thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 431 760 862 1724 2155 3448 4310 8189 8620 16378 17240 32756 40813 40945 65512 81626 81890 163252 163780 204065 326504 327560 408130 775447 816260 1550894 1632520 3101788 3877235 6203576 7754470 15508940 17590403 31017880 35180806 70361612 87952015 140723224 175904030 334217657 351808060 668435314 703616120 1336870628 1671088285 2673741256 3342176570 6684353140 13368706280