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13288445898 = 23713173140681
BaseRepresentation
bin11000110000000110…
…11001011111001010
31021022002112222211220
430120003121133022
5204203320232043
610034333302510
7650204632530
oct143003313712
937262488756
1013288445898
1156a9a880a2
1226aa334a36
13133a085750
14900bb2150
1552b92c483
hex3180d97ca

13288445898 has 64 divisors (see below), whose sum is σ = 32899329792. Its totient is φ = 3484362240.

The previous prime is 13288445873. The next prime is 13288445921. The reversal of 13288445898 is 89854488231.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24118 + ... + 164798.

It is an arithmetic number, because the mean of its divisors is an integer number (514052028).

Almost surely, 213288445898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13288445898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16449664896).

13288445898 is an abundant number, since it is smaller than the sum of its proper divisors (19610883894).

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

13288445898 is a wasteful number, since it uses less digits than its factorization.

13288445898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140879.

The product of its digits is 17694720, while the sum is 60.

The spelling of 13288445898 in words is "thirteen billion, two hundred eighty-eight million, four hundred forty-five thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 173 182 273 346 519 546 1038 1211 2249 2422 3633 4498 6747 7266 13494 15743 31486 47229 94458 140681 281362 422043 844086 984767 1828853 1969534 2954301 3657706 5486559 5908602 10973118 12801971 24337813 25603942 38405913 48675626 73013439 76811826 146026878 170364691 316391569 340729382 511094073 632783138 949174707 1022188146 1898349414 2214740983 4429481966 6644222949 13288445898