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272640986400 = 253521924124809
BaseRepresentation
bin1111110111101010101…
…0110100110100100000
3222001201211010010122010
43331322222310310200
513431332043031100
6325125522312520
725461204101316
oct3757252646440
9861654103563
10272640986400
11a5698802462
1244a0aab8740
131c92c95a273
14d2a57680b6
15715a85e750
hex3f7aab4d20

272640986400 has 288 divisors, whose sum is σ = 938068084800. Its totient is φ = 68589158400.

The previous prime is 272640986393. The next prime is 272640986417. The reversal of 272640986400 is 4689046272.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 272640986400.

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, 10977196 + ... + 11002004.

It is an arithmetic number, because the mean of its divisors is an integer number (3257180850).

Almost surely, 2272640986400 is an apocalyptic number.

272640986400 is a gapful number since it is divisible by the number (20) 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 272640986400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469034042400).

272640986400 is an abundant number, since it is smaller than the sum of its proper divisors (665427098400).

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

272640986400 is a wasteful number, since it uses less digits than its factorization.

272640986400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25092 (or 25079 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 272640986400 in words is "two hundred seventy-two billion, six hundred forty million, nine hundred eighty-six thousand, four hundred".