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2730825780 = 2235123136973
BaseRepresentation
bin1010001011000101…
…0001100000110100
321001022112022201120
42202301101200310
521043042411110
61130551023540
7124446431124
oct24261214064
97038468646
102730825780
111181530911
1264266abb0
133469ba557
141bc978c84
1510eb23870
hexa2c51834

2730825780 has 48 divisors (see below), whose sum is σ = 7652730624. Its totient is φ = 727608960.

The previous prime is 2730825751. The next prime is 2730825791. The reversal of 2730825780 is 875280372.

It is a congruent number.

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, 55374 + ... + 92346.

It is an arithmetic number, because the mean of its divisors is an integer number (159431888).

Almost surely, 22730825780 is an apocalyptic number.

2730825780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2730825780 is an abundant number, since it is smaller than the sum of its proper divisors (4921904844).

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

2730825780 is a wasteful number, since it uses less digits than its factorization.

2730825780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38216 (or 38214 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 2730825780 is about 52257.3036043767. The cubic root of 2730825780 is about 1397.7558911562.

The spelling of 2730825780 in words is "two billion, seven hundred thirty million, eight hundred twenty-five thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1231 2462 3693 4924 6155 7386 12310 14772 18465 24620 36930 36973 73860 73946 110919 147892 184865 221838 369730 443676 554595 739460 1109190 2218380 45513763 91027526 136541289 182055052 227568815 273082578 455137630 546165156 682706445 910275260 1365412890 2730825780