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13200000120 = 23325374432237
BaseRepresentation
bin11000100101100100…
…00000010001111000
31021001221010111001100
430102302000101320
5204013200000440
610021453451400
7645052102236
oct142262002170
937057114040
1013200000120
11566406850a
1226847a0b60
131324959078
148d314b956
15523cab230
hex312c80478

13200000120 has 192 divisors, whose sum is σ = 44178657120. Its totient is φ = 3415606272.

The previous prime is 13200000067. The next prime is 13200000137. The reversal of 13200000120 is 2100000231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5899642 + ... + 5901878.

Almost surely, 213200000120 is an apocalyptic number.

13200000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13200000120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22089328560).

13200000120 is an abundant number, since it is smaller than the sum of its proper divisors (30978657000).

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

13200000120 is a wasteful number, since it uses less digits than its factorization.

13200000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734 (or 2727 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 13200000120 its reverse (2100000231), we get a palindrome (15300000351).

The spelling of 13200000120 in words is "thirteen billion, two hundred million, one hundred twenty", and thus it is an aban number.