Search a number
-
+
292421213 = 7131318889
BaseRepresentation
bin10001011011011…
…111111001011101
3202101020112111022
4101123133321131
51044324434323
645003333525
710150352660
oct2133377135
9671215438
10292421213
11140078427
1281b212a5
1348776306
142ab9d6d7
151aa134c8
hex116dfe5d

292421213 has 8 divisors (see below), whose sum is σ = 336747840. Its totient is φ = 248732640.

The previous prime is 292421209. The next prime is 292421219. The reversal of 292421213 is 312124292.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 292421213 - 22 = 292421209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (292421219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158528 + ... + 160361.

It is an arithmetic number, because the mean of its divisors is an integer number (42093480).

Almost surely, 2292421213 is an apocalyptic number.

It is an amenable number.

292421213 is a deficient number, since it is larger than the sum of its proper divisors (44326627).

292421213 is a wasteful number, since it uses less digits than its factorization.

292421213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319027.

The product of its digits is 1728, while the sum is 26.

The square root of 292421213 is about 17100.3278623540. The cubic root of 292421213 is about 663.7475913485.

It can be divided in two parts, 29 and 2421213, that added together give a palindrome (2421242).

The spelling of 292421213 in words is "two hundred ninety-two million, four hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 7 131 917 318889 2232223 41774459 292421213