Search a number
-
+
292881140 = 22531147087
BaseRepresentation
bin10001011101010…
…000001011110100
3202102002220101122
4101131100023310
51044434144030
645021243112
710154306606
oct2135201364
9672086348
10292881140
11140361a32
1282103498
13488a7766
142ac7d176
151aaa48e5
hex117502f4

292881140 has 24 divisors (see below), whose sum is σ = 617041152. Its totient is φ = 116773280.

The previous prime is 292881139. The next prime is 292881217. The reversal of 292881140 is 41188292.

It is a self number, because there is not a number n which added to its sum of digits gives 292881140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17324 + ... + 29763.

It is an arithmetic number, because the mean of its divisors is an integer number (25710048).

Almost surely, 2292881140 is an apocalyptic number.

292881140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

292881140 is an abundant number, since it is smaller than the sum of its proper divisors (324160012).

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

292881140 is a wasteful number, since it uses less digits than its factorization.

292881140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47407 (or 47405 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 292881140 is about 17113.7704787694. The cubic root of 292881140 is about 664.0953950376.

The spelling of 292881140 in words is "two hundred ninety-two million, eight hundred eighty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 311 622 1244 1555 3110 6220 47087 94174 188348 235435 470870 941740 14644057 29288114 58576228 73220285 146440570 292881140