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101220014211405 = 3531280017773917
BaseRepresentation
bin10111000000111100011110…
…111111011100000101001101
3111021101112112211021220220020
4113000330132333130011031
5101231342042114231110
6555135455501212353
730214622211631665
oct2700743677340515
9437345484256806
10101220014211405
112a285192249551
12b429149b610b9
134463011042c9b
141add1094811a5
15ba7e715d1d70
hex5c0f1efdc14d

101220014211405 has 32 divisors (see below), whose sum is σ = 167182273410048. Its totient is φ = 52240715520000.

The previous prime is 101220014211403. The next prime is 101220014211457. The reversal of 101220014211405 is 504112410022101.

It is not a de Polignac number, because 101220014211405 - 21 = 101220014211403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220014211403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9133507 + ... + 16907423.

It is an arithmetic number, because the mean of its divisors is an integer number (5224446044064).

Almost surely, 2101220014211405 is an apocalyptic number.

101220014211405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101220014211405 is a deficient number, since it is larger than the sum of its proper divisors (65962259198643).

101220014211405 is a wasteful number, since it uses less digits than its factorization.

101220014211405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801957.

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 101220014211405 its reverse (504112410022101), we get a palindrome (605332424233506).

The spelling of 101220014211405 in words is "one hundred one trillion, two hundred twenty billion, fourteen million, two hundred eleven thousand, four hundred five".

Divisors: 1 3 5 15 31 93 155 465 28001 84003 140005 420015 868031 2604093 4340155 7773917 13020465 23321751 38869585 116608755 240991427 722974281 1204957135 3614871405 217677449917 653032349751 1088387249585 3265161748755 6748000947427 20244002842281 33740004737135 101220014211405