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13021211104 = 251152337069
BaseRepresentation
bin11000010000001111…
…11110100111100000
31020121110201001121221
430020013332213200
5203131412223404
65552025424424
7640451316406
oct141007764740
936543631557
1013021211104
1155821526a0
12263493b114
1312c68ba455
148b74cb476
15513241954
hex3081fe9e0

13021211104 has 48 divisors (see below), whose sum is σ = 27975311280. Its totient is φ = 5916764160.

The previous prime is 13021211101. The next prime is 13021211117. The reversal of 13021211104 is 40111212031.

It is a super-2 number, since 2×130212111042 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021211101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1838482 + ... + 1845550.

It is an arithmetic number, because the mean of its divisors is an integer number (582818985).

Almost surely, 213021211104 is an apocalyptic number.

It is an amenable number.

13021211104 is an abundant number, since it is smaller than the sum of its proper divisors (14954100176).

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

13021211104 is a wasteful number, since it uses less digits than its factorization.

13021211104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12323 (or 12315 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 13021211104 its reverse (40111212031), we get a palindrome (53132423135).

The spelling of 13021211104 in words is "thirteen billion, twenty-one million, two hundred eleven thousand, one hundred four".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 5233 7069 10466 14138 20932 28276 41864 56552 57563 77759 83728 113104 115126 155518 167456 226208 230252 311036 460504 622072 921008 1244144 1842016 2488288 36992077 73984154 147968308 295936616 406912847 591873232 813825694 1183746464 1627651388 3255302776 6510605552 13021211104