Search a number
-
+
305531350 = 25231197117
BaseRepresentation
bin10010001101100…
…000100111010110
3210021220121012221
4102031200213112
51111204000400
650152332554
710366654645
oct2215404726
9707817187
10305531350
11147512253
12863a415a
134b3b66a7
142c81335c
151bc52c1a
hex123609d6

305531350 has 24 divisors (see below), whose sum is σ = 586623168. Its totient is φ = 118269600.

The previous prime is 305531339. The next prime is 305531351. The reversal of 305531350 is 53135503.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305531351) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 97009 + ... + 100108.

It is an arithmetic number, because the mean of its divisors is an integer number (24442632).

Almost surely, 2305531350 is an apocalyptic number.

305531350 is a deficient number, since it is larger than the sum of its proper divisors (281091818).

305531350 is a wasteful number, since it uses less digits than its factorization.

305531350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197160 (or 197155 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 305531350 is about 17479.4550830396. The cubic root of 305531350 is about 673.5222174292.

Adding to 305531350 its reverse (53135503), we get a palindrome (358666853).

The spelling of 305531350 in words is "three hundred five million, five hundred thirty-one thousand, three hundred fifty".

Divisors: 1 2 5 10 25 31 50 62 155 310 775 1550 197117 394234 985585 1971170 4927925 6110627 9855850 12221254 30553135 61106270 152765675 305531350