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13214477898 = 232734137661
BaseRepresentation
bin11000100111010010…
…01110111001001010
31021002221101000211100
430103221032321022
5204030401243043
610023132042230
7645316131426
oct142351167112
937087330740
1013214477898
115671256916
122689603376
131327957abb
148d5039b86
155251bacd3
hex313a4ee4a

13214477898 has 12 divisors (see below), whose sum is σ = 28631368818. Its totient is φ = 4404825960.

The previous prime is 13214477873. The next prime is 13214477953. The reversal of 13214477898 is 89877441231.

13214477898 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 only one way, i.e., 9313601049 + 3900876849 = 96507^2 + 62457^2 .

It is a super-2 number, since 2×132144778982 (a number of 21 digits) contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 367068813 + ... + 367068848.

Almost surely, 213214477898 is an apocalyptic number.

13214477898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13214477898 is an abundant number, since it is smaller than the sum of its proper divisors (15416890920).

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

13214477898 is a wasteful number, since it uses less digits than its factorization.

13214477898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734137669 (or 734137666 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The spelling of 13214477898 in words is "thirteen billion, two hundred fourteen million, four hundred seventy-seven thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 9 18 734137661 1468275322 2202412983 4404825966 6607238949 13214477898