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13445210550 = 2352293090853
BaseRepresentation
bin11001000010110010…
…11010000110110110
31021201000112110112010
430201121122012312
5210013433214200
610102053305050
7654120255402
oct144131320666
937630473463
1013445210550
11577a51a762
122732935186
1313636b26b5
1491793c102
1553a596150
hex32165a1b6

13445210550 has 48 divisors (see below), whose sum is σ = 34493930640. Its totient is φ = 3461754240.

The previous prime is 13445210549. The next prime is 13445210557. The reversal of 13445210550 is 5501254431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445210557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1541077 + ... + 1549776.

It is an arithmetic number, because the mean of its divisors is an integer number (718623555).

Almost surely, 213445210550 is an apocalyptic number.

13445210550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13445210550 is an abundant number, since it is smaller than the sum of its proper divisors (21048720090).

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

13445210550 is a wasteful number, since it uses less digits than its factorization.

13445210550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090897 (or 3090892 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 13445210550 its reverse (5501254431), we get a palindrome (18946464981).

The spelling of 13445210550 in words is "thirteen billion, four hundred forty-five million, two hundred ten thousand, five hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 29 30 50 58 75 87 145 150 174 290 435 725 870 1450 2175 4350 3090853 6181706 9272559 15454265 18545118 30908530 46362795 77271325 89634737 92725590 154542650 179269474 231813975 268904211 448173685 463627950 537808422 896347370 1344521055 2240868425 2689042110 4481736850 6722605275 13445210550