Search a number
-
+
87530274400 = 2552109412843
BaseRepresentation
bin101000110000100110…
…1011111111001100000
322100221010122122111211
41101201031133321200
52413230222240100
6104113313315504
76216040025242
oct1214115377140
9270833578454
1087530274400
1134137615758
1214b69865b94
13833c26299a
144344ccc092
1524246311ba
hex146135fe60

87530274400 has 36 divisors (see below), whose sum is σ = 213683284332. Its totient is φ = 35012109440.

The previous prime is 87530274397. The next prime is 87530274413. The reversal of 87530274400 is 447203578.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54705622 + ... + 54707221.

It is an arithmetic number, because the mean of its divisors is an integer number (5935646787).

Almost surely, 287530274400 is an apocalyptic number.

87530274400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87530274400 is an abundant number, since it is smaller than the sum of its proper divisors (126153009932).

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

87530274400 is a wasteful number, since it uses less digits than its factorization.

87530274400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109412863 (or 109412850 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

Adding to 87530274400 its reverse (447203578), we get a palindrome (87977477978).

The spelling of 87530274400 in words is "eighty-seven billion, five hundred thirty million, two hundred seventy-four thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 109412843 218825686 437651372 547064215 875302744 1094128430 1750605488 2188256860 2735321075 3501210976 4376513720 5470642150 8753027440 10941284300 17506054880 21882568600 43765137200 87530274400