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13013141421 = 375915536763
BaseRepresentation
bin11000001111010010…
…01100011110101101
31020120220112002002210
430013221030132231
5203122331011141
65551140441033
7640322606550
oct140751143655
936526462083
1013013141421
115578640835
1226320a9179
1312c50233a7
148b63ca697
1551269a916
hex307a4c7ad

13013141421 has 32 divisors (see below), whose sum is σ = 20181611520. Its totient is φ = 7304258304.

The previous prime is 13013141387. The next prime is 13013141441. The reversal of 13013141421 is 12414131031.

It is not a de Polignac number, because 13013141421 - 27 = 13013141293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013141441) 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, 1920786 + ... + 1927548.

It is an arithmetic number, because the mean of its divisors is an integer number (630675360).

Almost surely, 213013141421 is an apocalyptic number.

It is an amenable number.

13013141421 is a deficient number, since it is larger than the sum of its proper divisors (7168470099).

13013141421 is a wasteful number, since it uses less digits than its factorization.

13013141421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8385.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 13013141421 its reverse (12414131031), we get a palindrome (25427272452).

The spelling of 13013141421 in words is "thirteen billion, thirteen million, one hundred forty-one thousand, four hundred twenty-one".

Divisors: 1 3 7 21 59 177 413 1239 1553 4659 6763 10871 20289 32613 47341 91627 142023 274881 399017 641389 1197051 1924167 2793119 8379357 10502939 31508817 73520573 220561719 619673401 1859020203 4337713807 13013141421