Search a number
-
+
2913140 = 2251131289
BaseRepresentation
bin1011000111001101110100
312111000002002
423013031310
51221210030
6142234432
733522056
oct13071564
95430062
102913140
11170a75a
12b85a18
137acc69
1455b8d6
153c8245
hex2c7374

2913140 has 24 divisors (see below), whose sum is σ = 6176520. Its totient is φ = 1154048.

The previous prime is 2913139. The next prime is 2913151. The reversal of 2913140 is 413192.

It can be written as a sum of positive squares in 4 ways, for example, as 77284 + 2835856 = 278^2 + 1684^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616 + ... + 2904.

It is an arithmetic number, because the mean of its divisors is an integer number (257355).

22913140 is an apocalyptic number.

2913140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2913140 is an abundant number, since it is smaller than the sum of its proper divisors (3263380).

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

2913140 is a wasteful number, since it uses less digits than its factorization.

2913140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1409 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2913140 is about 1706.7923130832. The cubic root of 2913140 is about 142.8193719191.

The spelling of 2913140 in words is "two million, nine hundred thirteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 113 226 452 565 1130 1289 2260 2578 5156 6445 12890 25780 145657 291314 582628 728285 1456570 2913140