Search a number
-
+
2275798140 = 2233573111117
BaseRepresentation
bin1000011110100101…
…1110110001111100
312212121022112011000
42013221132301330
514130101020030
61013454130300
7110252652000
oct20751366174
95777275130
102275798140
11a686a0910
125361b0990
132a3650325
1417836c700
15d4be0860
hex87a5ec7c

2275798140 has 384 divisors, whose sum is σ = 9015552000. Its totient is φ = 472469760.

The previous prime is 2275798123. The next prime is 2275798153. The reversal of 2275798140 is 418975722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2036862 + ... + 2037978.

It is an arithmetic number, because the mean of its divisors is an integer number (23478000).

Almost surely, 22275798140 is an apocalyptic number.

2275798140 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 2275798140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4507776000).

2275798140 is an abundant number, since it is smaller than the sum of its proper divisors (6739753860).

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

2275798140 is a wasteful number, since it uses less digits than its factorization.

2275798140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 2275798140 is about 47705.3261177408. The cubic root of 2275798140 is about 1315.3598440774.

The spelling of 2275798140 in words is "two billion, two hundred seventy-five million, seven hundred ninety-eight thousand, one hundred forty".