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12151353522 = 23711199132169
BaseRepresentation
bin10110101000100011…
…01111000010110010
31011100211220201100110
423110101233002302
5144341221303042
65325433402150
7610056541440
oct132421570262
934324821313
1012151353522
115176138830
122431569356
1311b8618819
14833b79b90
154b1bbb09c
hex2d446f0b2

12151353522 has 64 divisors (see below), whose sum is σ = 30451968000. Its totient is φ = 3140311680.

The previous prime is 12151353521. The next prime is 12151353527. The reversal of 12151353522 is 22535315121.

It is a self number, because there is not a number n which added to its sum of digits gives 12151353522.

It is not an unprimeable number, because it can be changed into a prime (12151353521) 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, 25854 + ... + 158022.

It is an arithmetic number, because the mean of its divisors is an integer number (475812000).

Almost surely, 212151353522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12151353522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15225984000).

12151353522 is an abundant number, since it is smaller than the sum of its proper divisors (18300614478).

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

12151353522 is a wasteful number, since it uses less digits than its factorization.

12151353522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132391.

The product of its digits is 9000, while the sum is 30.

Adding to 12151353522 its reverse (22535315121), we get a palindrome (34686668643).

The spelling of 12151353522 in words is "twelve billion, one hundred fifty-one million, three hundred fifty-three thousand, five hundred twenty-two".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 199 231 398 462 597 1194 1393 2189 2786 4179 4378 6567 8358 13134 15323 30646 45969 91938 132169 264338 396507 793014 925183 1453859 1850366 2775549 2907718 4361577 5551098 8723154 10177013 20354026 26301631 30531039 52603262 61062078 78904893 157809786 184111417 289317941 368222834 552334251 578635882 867953823 1104668502 1735907646 2025225587 4050451174 6075676761 12151353522