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13120404024320 = 210561915432683
BaseRepresentation
bin1011111011101101010100…
…0001010110110000000000
31201110022001111220200221122
42332323111001112300000
53204431041412234240
643523232544411412
72522626562046305
oct276732501266000
951408044820848
1013120404024320
1141a937202930a
12157a9a4916b68
13742330792a18
14335060c9d0ac
1517b459d484b5
hexbeed5056c00

13120404024320 has 176 divisors, whose sum is σ = 31556627984640. Its totient is φ = 5234335727616.

The previous prime is 13120404024293. The next prime is 13120404024419. The reversal of 13120404024320 is 2342040402131.

It is a super-2 number, since 2×131204040243202 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13120404024320.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4890197699 + ... + 4890200381.

It is an arithmetic number, because the mean of its divisors is an integer number (179299022640).

Almost surely, 213120404024320 is an apocalyptic number.

13120404024320 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 13120404024320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15778313992320).

13120404024320 is an abundant number, since it is smaller than the sum of its proper divisors (18436223960320).

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

13120404024320 is a wasteful number, since it uses less digits than its factorization.

13120404024320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4870 (or 4852 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 13120404024320 its reverse (2342040402131), we get a palindrome (15462444426451).

The spelling of 13120404024320 in words is "thirteen trillion, one hundred twenty billion, four hundred four million, twenty-four thousand, three hundred twenty".