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13055553140 = 2257213321993
BaseRepresentation
bin11000010100010101…
…11110111001110100
31020200212022211001012
430022022332321310
5203214210200030
65555253451352
7641346241100
oct141212767164
936625284035
1013055553140
11559a579343
122644340b58
131300a52896
148bbcaa900
15516277095
hex30a2bee74

13055553140 has 36 divisors (see below), whose sum is σ = 31892853636. Its totient is φ = 4476189312.

The previous prime is 13055553131. The next prime is 13055553151. The reversal of 13055553140 is 4135555031.

It can be written as a sum of positive squares in 2 ways, for example, as 5603720164 + 7451832976 = 74858^2 + 86324^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13055553097 and 13055553106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6660017 + ... + 6661976.

It is an arithmetic number, because the mean of its divisors is an integer number (885912601).

Almost surely, 213055553140 is an apocalyptic number.

13055553140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13055553140 is an abundant number, since it is smaller than the sum of its proper divisors (18837300496).

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

13055553140 is a wasteful number, since it uses less digits than its factorization.

13055553140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13322016 (or 13322007 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 13055553140 in words is "thirteen billion, fifty-five million, five hundred fifty-three thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 13321993 26643986 53287972 66609965 93253951 133219930 186507902 266439860 373015804 466269755 652777657 932539510 1305555314 1865079020 2611110628 3263888285 6527776570 13055553140