[go: up one dir, main page]

Search a number
-
+
2955220 = 225147761
BaseRepresentation
bin1011010001011111010100
312120010210121
423101133110
51224031340
6143201324
734055542
oct13213724
95503717
102955220
111739334
12ba6244
137c6168
1456cd92
153d594a
hex2d17d4

2955220 has 12 divisors (see below), whose sum is σ = 6206004. Its totient is φ = 1182080.

The previous prime is 2955217. The next prime is 2955223. The reversal of 2955220 is 225592.

2955220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2955217) and next prime (2955223).

It can be written as a sum of positive squares in 2 ways, for example, as 1285956 + 1669264 = 1134^2 + 1292^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2955223) 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, 73861 + ... + 73900.

It is an arithmetic number, because the mean of its divisors is an integer number (517167).

22955220 is an apocalyptic number.

2955220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2955220 is an abundant number, since it is smaller than the sum of its proper divisors (3250784).

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

2955220 is a wasteful number, since it uses less digits than its factorization.

2955220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147770 (or 147768 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2955220 is about 1719.0753328461. The cubic root of 2955220 is about 143.5037573832.

The spelling of 2955220 in words is "two million, nine hundred fifty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 147761 295522 591044 738805 1477610 2955220