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13013111132220 = 2235559333877589
BaseRepresentation
bin1011110101011101100111…
…0111011101000000111100
31201002001010002102001111010
42331113121313131000330
53201201322422212340
643402050221355220
72512111011364563
oct275273167350074
951061102361433
1013013111132220
114167913a8a461
121562040708b10
1373519209a914
1432dba343cbda
1517877a73bb80
hexbd5d9ddd03c

13013111132220 has 48 divisors (see below), whose sum is σ = 36437372002080. Its totient is φ = 3470100032256.

The previous prime is 13013111132171. The next prime is 13013111132381. The reversal of 13013111132220 is 2223111131031.

It is a super-2 number, since 2×130131111322202 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1417186 + ... + 5294774.

It is an arithmetic number, because the mean of its divisors is an integer number (759111916710).

Almost surely, 213013111132220 is an apocalyptic number.

13013111132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13013111132220 is an abundant number, since it is smaller than the sum of its proper divisors (23424260869860).

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

13013111132220 is a wasteful number, since it uses less digits than its factorization.

13013111132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933534 (or 3933532 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 13013111132220 its reverse (2223111131031), we get a palindrome (15236222263251).

The spelling of 13013111132220 in words is "thirteen trillion, thirteen billion, one hundred eleven million, one hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 55933 111866 167799 223732 279665 335598 559330 671196 838995 1118660 1677990 3355980 3877589 7755178 11632767 15510356 19387945 23265534 38775890 46531068 58163835 77551780 116327670 232655340 216885185537 433770371074 650655556611 867540742148 1084425927685 1301311113222 2168851855370 2602622226444 3253277783055 4337703710740 6506555566110 13013111132220