Search a number
-
+
308142916 = 226721312
BaseRepresentation
bin10010010111011…
…110001101000100
3210110211021121121
4102113132031010
51112341033131
650324323324
710431112564
oct2227361504
9713737547
10308142916
11148a36374
1287243544
134babc2b3
142ccd2da4
151c0bb911
hex125de344

308142916 has 27 divisors (see below), whose sum is σ = 551629407. Its totient is φ = 150613320.

The previous prime is 308142881. The next prime is 308142941. The reversal of 308142916 is 619241803.

The square root of 308142916 is 17554.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2352171 + ... + 2352301.

Almost surely, 2308142916 is an apocalyptic number.

308142916 is the 17554-th square number.

It is an amenable number.

308142916 is a deficient number, since it is larger than the sum of its proper divisors (243486491).

308142916 is an equidigital number, since it uses as much as digits as its factorization.

308142916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The cubic root of 308142916 is about 675.4357796885.

The spelling of 308142916 in words is "three hundred eight million, one hundred forty-two thousand, nine hundred sixteen".

Divisors: 1 2 4 67 131 134 262 268 524 4489 8777 8978 17161 17554 17956 34322 35108 68644 588059 1149787 1176118 2299574 2352236 4599148 77035729 154071458 308142916