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13409971200 = 210345229223
BaseRepresentation
bin11000111110100101…
…11110110000000000
31021121120020010020000
430133102332300000
5204430423034300
610054354120000
7653211605643
oct143722766000
937546203200
1013409971200
11576164092a
122722b80000
1313592c4a02
14912da7a5a
15537434c00
hex31f4bec00

13409971200 has 660 divisors, whose sum is σ = 51598155840. Its totient is φ = 3437199360.

The previous prime is 13409971193. The next prime is 13409971219. The reversal of 13409971200 is 217990431.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 60134289 + ... + 60134511.

It is an arithmetic number, because the mean of its divisors is an integer number (78179024).

Almost surely, 213409971200 is an apocalyptic number.

13409971200 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 13409971200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25799077920).

13409971200 is an abundant number, since it is smaller than the sum of its proper divisors (38188184640).

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

13409971200 is a wasteful number, since it uses less digits than its factorization.

13409971200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 13409971200 in words is "thirteen billion, four hundred nine million, nine hundred seventy-one thousand, two hundred".