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13001030312 = 231625128789
BaseRepresentation
bin11000001101110101…
…11111101010101000
31020120001201202210012
430012322333222220
5203111230432222
65550025111052
7640114635314
oct140672775250
936501652705
1013001030312
115571819556
12262a028488
1312c267295a
148b4956b44
155115a71e2
hex306ebfaa8

13001030312 has 8 divisors (see below), whose sum is σ = 24376931850. Its totient is φ = 6500515152.

The previous prime is 13001030309. The next prime is 13001030321. The reversal of 13001030312 is 21303010031.

It can be written as a sum of positive squares in only one way, i.e., 9317268676 + 3683761636 = 96526^2 + 60694^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812564387 + ... + 812564402.

Almost surely, 213001030312 is an apocalyptic number.

It is an amenable number.

13001030312 is a deficient number, since it is larger than the sum of its proper divisors (11375901538).

13001030312 is a wasteful number, since it uses less digits than its factorization.

13001030312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625128795 (or 1625128791 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13001030312 its reverse (21303010031), we get a palindrome (34304040343).

The spelling of 13001030312 in words is "thirteen billion, one million, thirty thousand, three hundred twelve".

Divisors: 1 2 4 8 1625128789 3250257578 6500515156 13001030312