Search a number
-
+
2875720320 = 2735511412
BaseRepresentation
bin1010101101101000…
…0000001010000000
321102102011201200000
42223122000022000
521342141022240
61153204400000
7131156135154
oct25332001200
97372151600
102875720320
1112462a6270
126830a6000
1336aa1c675
141d3cd5064
1511c6e5430
hexab680280

2875720320 has 576 divisors, whose sum is σ = 11514877920. Its totient is φ = 680140800.

The previous prime is 2875720277. The next prime is 2875720321. The reversal of 2875720320 is 230275782.

It is a happy number.

2875720320 is a `hidden beast` number, since 2 + 87 + 572 + 0 + 3 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2875720321) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 70139500 + ... + 70139540.

Almost surely, 22875720320 is an apocalyptic number.

2875720320 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 2875720320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5757438960).

2875720320 is an abundant number, since it is smaller than the sum of its proper divisors (8639157600).

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

2875720320 is an equidigital number, since it uses as much as digits as its factorization.

2875720320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 2875720320 is about 53625.7430717748. The cubic root of 2875720320 is about 1422.0522333000.

The spelling of 2875720320 in words is "two billion, eight hundred seventy-five million, seven hundred twenty thousand, three hundred twenty".