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13231009898 = 21910117319927
BaseRepresentation
bin11000101001010000…
…10011000001101010
31021011002110221110122
430110220103001222
5204044114304043
610024522243242
7645606504611
oct142450230152
937132427418
1013231009898
11567a618627
122693056522
13132b1c5852
148d7300878
15526884368
hex314a1306a

13231009898 has 32 divisors (see below), whose sum is σ = 21220928640. Its totient is φ = 6169089600.

The previous prime is 13231009889. The next prime is 13231009933. The reversal of 13231009898 is 89890013231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654011 + ... + 673937.

It is an arithmetic number, because the mean of its divisors is an integer number (663154020).

Almost surely, 213231009898 is an apocalyptic number.

13231009898 is a deficient number, since it is larger than the sum of its proper divisors (7989918742).

13231009898 is a wasteful number, since it uses less digits than its factorization.

13231009898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20222.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 13231009898 in words is "thirteen billion, two hundred thirty-one million, nine thousand, eight hundred ninety-eight".

Divisors: 1 2 19 38 101 173 202 346 1919 3287 3838 6574 17473 19927 34946 39854 331987 378613 663974 757226 2012627 3447371 4025254 6894742 38239913 65500049 76479826 131000098 348184471 696368942 6615504949 13231009898