Search a number
-
+
2855480 = 23571387
BaseRepresentation
bin1010111001001000111000
312101001222112
422321020320
51212333410
6141111452
733162005
oct12711070
95331875
102855480
111680401
12b58588
1378c944
145448ac
153b6105
hex2b9238

2855480 has 16 divisors (see below), whose sum is σ = 6424920. Its totient is φ = 1142176.

The previous prime is 2855467. The next prime is 2855483. The reversal of 2855480 is 845582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35654 + ... + 35733.

22855480 is an apocalyptic number.

2855480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2855480 is an abundant number, since it is smaller than the sum of its proper divisors (3569440).

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

2855480 is a wasteful number, since it uses less digits than its factorization.

2855480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71398 (or 71394 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 2855480 is about 1689.8165580914. The cubic root of 2855480 is about 141.8708075766.

The spelling of 2855480 in words is "two million, eight hundred fifty-five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 71387 142774 285548 356935 571096 713870 1427740 2855480