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13031552450 = 252726138677
BaseRepresentation
bin11000010001011110…
…11011010111000010
31020122012011110021202
430020233123113002
5203142034134300
65553035221202
7640635240200
oct141057332702
936565143252
1013031552450
115587a76264
1226382a7802
1312c8a9b4a7
148b8a20070
155140d5ad5
hex308bdb5c2

13031552450 has 72 divisors (see below), whose sum is σ = 28245275892. Its totient is φ = 4460158080.

The previous prime is 13031552447. The next prime is 13031552467. The reversal of 13031552450 is 5425513031.

13031552450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 312900721 + 12718651729 = 17689^2 + 112777^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1497512 + ... + 1506188.

Almost surely, 213031552450 is an apocalyptic number.

13031552450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13031552450 is an abundant number, since it is smaller than the sum of its proper divisors (15213723442).

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

13031552450 is a wasteful number, since it uses less digits than its factorization.

13031552450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9316 (or 9304 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 13031552450 in words is "thirteen billion, thirty-one million, five hundred fifty-two thousand, four hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 175 245 350 490 613 1225 1226 2450 3065 4291 6130 8582 8677 15325 17354 21455 30037 30650 42910 43385 60074 60739 86770 107275 121478 150185 214550 216925 300370 303695 425173 433850 607390 750925 850346 1501850 1518475 2125865 3036950 4251730 5319001 10629325 10638002 21258650 26595005 37233007 53190010 74466014 132975025 186165035 260631049 265950050 372330070 521262098 930825175 1303155245 1861650350 2606310490 6515776225 13031552450