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13145215510120 = 2351473122308763
BaseRepresentation
bin1011111101001001101111…
…1001101010011001101000
31201112200002200002202220011
42333102123321222121220
53210332400132310440
643542454552541304
72524465460151511
oct277223371523150
951480080082804
1013145215510120
114208944507881
12158376a0b1834
13744785c33b75
143363361b3a08
1517be0d1ce9ea
hexbf49be6a668

13145215510120 has 32 divisors (see below), whose sum is σ = 29578744012320. Its totient is φ = 5257729028160.

The previous prime is 13145215510069. The next prime is 13145215510129. The reversal of 13145215510120 is 2101551254131.

It is not an unprimeable number, because it can be changed into a prime (13145215510129) 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, 10565142 + ... + 11743621.

It is an arithmetic number, because the mean of its divisors is an integer number (924335750385).

Almost surely, 213145215510120 is an apocalyptic number.

13145215510120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13145215510120 is an abundant number, since it is smaller than the sum of its proper divisors (16433528502200).

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

13145215510120 is a wasteful number, since it uses less digits than its factorization.

13145215510120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22323505 (or 22323501 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 13145215510120 its reverse (2101551254131), we get a palindrome (15246766764251).

The spelling of 13145215510120 in words is "thirteen trillion, one hundred forty-five billion, two hundred fifteen million, five hundred ten thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 14731 29462 58924 73655 117848 147310 294620 589240 22308763 44617526 89235052 111543815 178470104 223087630 446175260 892350520 328630387753 657260775506 1314521551012 1643151938765 2629043102024 3286303877530 6572607755060 13145215510120