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13409188220 = 2251399774937
BaseRepresentation
bin11000111110011111…
…11111100101111100
31021121111202100011202
430133033333211330
5204430223010340
610054325235032
7653202135131
oct143717774574
937544670152
1013409188220
11576115663a
122722862a78
1313590ac4cc
14912c42588
1553732cc15
hex31f3ff97c

13409188220 has 48 divisors (see below), whose sum is σ = 28396660320. Its totient is φ = 5318559744.

The previous prime is 13409188217. The next prime is 13409188223. The reversal of 13409188220 is 2288190431.

It is an interprime number because it is at equal distance from previous prime (13409188217) and next prime (13409188223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13409188223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2713592 + ... + 2718528.

It is an arithmetic number, because the mean of its divisors is an integer number (591597090).

Almost surely, 213409188220 is an apocalyptic number.

13409188220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13409188220 is an abundant number, since it is smaller than the sum of its proper divisors (14987472100).

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

13409188220 is a wasteful number, since it uses less digits than its factorization.

13409188220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6062 (or 6060 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 13409188220 in words is "thirteen billion, four hundred nine million, one hundred eighty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 139 278 556 695 977 1390 1954 2780 3908 4885 4937 9770 9874 19540 19748 24685 49370 98740 135803 271606 543212 679015 686243 1358030 1372486 2716060 2744972 3431215 4823449 6862430 9646898 13724860 19293796 24117245 48234490 96468980 670459411 1340918822 2681837644 3352297055 6704594110 13409188220