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2729038240 = 25519985711
BaseRepresentation
bin1010001010101001…
…1101000110100000
321001012011111200101
42202222131012200
521042113210430
61130444432144
7124425304465
oct24252350640
97035144611
102729038240
11118051a905
12641b48654
13346512a36
141bc63166c
1510e8bddca
hexa2a9d1a0

2729038240 has 48 divisors (see below), whose sum is σ = 6479827200. Its totient is φ = 1086117120.

The previous prime is 2729038231. The next prime is 2729038259. The reversal of 2729038240 is 428309272.

It is a self number, because there is not a number n which added to its sum of digits gives 2729038240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11016 + ... + 74695.

It is an arithmetic number, because the mean of its divisors is an integer number (134996400).

Almost surely, 22729038240 is an apocalyptic number.

2729038240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2729038240 is an abundant number, since it is smaller than the sum of its proper divisors (3750788960).

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

2729038240 is a wasteful number, since it uses less digits than its factorization.

2729038240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85925 (or 85917 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 2729038240 is about 52240.1975493968. The cubic root of 2729038240 is about 1397.4508442424.

The spelling of 2729038240 in words is "two billion, seven hundred twenty-nine million, thirty-eight thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 199 398 796 995 1592 1990 3184 3980 6368 7960 15920 31840 85711 171422 342844 428555 685688 857110 1371376 1714220 2742752 3428440 6856880 13713760 17056489 34112978 68225956 85282445 136451912 170564890 272903824 341129780 545807648 682259560 1364519120 2729038240