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13444352560 = 245374542011
BaseRepresentation
bin11001000010101100…
…01000101000110000
31021200221220212120201
430201112020220300
5210013223240220
610102023044544
7654110053102
oct144126105060
937627825521
1013444352560
115779a94081
1227325a0754
131363472002
14917797572
1553a476d0a
hex321588a30

13444352560 has 40 divisors (see below), whose sum is σ = 32102940816. Its totient is φ = 5232395520.

The previous prime is 13444352543. The next prime is 13444352567. The reversal of 13444352560 is 6525344431.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (13444352567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2268046 + ... + 2273965.

Almost surely, 213444352560 is an apocalyptic number.

13444352560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13444352560 is an abundant number, since it is smaller than the sum of its proper divisors (18658588256).

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

13444352560 is a wasteful number, since it uses less digits than its factorization.

13444352560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542061 (or 4542055 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 13444352560 its reverse (6525344431), we get a palindrome (19969696991).

The spelling of 13444352560 in words is "thirteen billion, four hundred forty-four million, three hundred fifty-two thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 37 40 74 80 148 185 296 370 592 740 1480 2960 4542011 9084022 18168044 22710055 36336088 45420110 72672176 90840220 168054407 181680440 336108814 363360880 672217628 840272035 1344435256 1680544070 2688870512 3361088140 6722176280 13444352560