Search a number
-
+
308233722 = 23223230369
BaseRepresentation
bin10010010111110…
…100010111111010
3210110222220011210
4102113310113322
51112401434342
650330303550
710431641406
oct2227642772
9713886153
10308233722
11148a98615
1287287bb6
134bb21724
142cd18106
151c0d879c
hex125f45fa

308233722 has 16 divisors (see below), whose sum is σ = 619234560. Its totient is φ = 102283392.

The previous prime is 308233693. The next prime is 308233727. The reversal of 308233722 is 227332803.

It is a self number, because there is not a number n which added to its sum of digits gives 308233722.

It is not an unprimeable number, because it can be changed into a prime (308233727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113847 + ... + 116522.

It is an arithmetic number, because the mean of its divisors is an integer number (38702160).

Almost surely, 2308233722 is an apocalyptic number.

308233722 is an abundant number, since it is smaller than the sum of its proper divisors (311000838).

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

308233722 is a wasteful number, since it uses less digits than its factorization.

308233722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230597.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 308233722 is about 17556.5862854941. The cubic root of 308233722 is about 675.5021207643.

The spelling of 308233722 in words is "three hundred eight million, two hundred thirty-three thousand, seven hundred twenty-two".

Divisors: 1 2 3 6 223 446 669 1338 230369 460738 691107 1382214 51372287 102744574 154116861 308233722