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13260420000 = 253254233203
BaseRepresentation
bin11000101100110000…
…11111001110100000
31021020010211010112200
430112120133032200
5204124131420000
610031452453200
7646414465422
oct142630371640
937203733480
1013260420000
1156951858a3
1226a0a7a200
131334322189
148db198812
15529243500
hex31661f3a0

13260420000 has 360 divisors, whose sum is σ = 49185680544. Its totient is φ = 3381312000.

The previous prime is 13260419999. The next prime is 13260420007. The reversal of 13260420000 is 2406231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13260420007) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4138399 + ... + 4141601.

Almost surely, 213260420000 is an apocalyptic number.

13260420000 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 13260420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24592840272).

13260420000 is an abundant number, since it is smaller than the sum of its proper divisors (35925260544).

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

13260420000 is a wasteful number, since it uses less digits than its factorization.

13260420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262 (or 3236 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13260420000 its reverse (2406231), we get a palindrome (13262826231).

The spelling of 13260420000 in words is "thirteen billion, two hundred sixty million, four hundred twenty thousand".