Search a number
-
+
305400570 = 23579128861
BaseRepresentation
bin10010001101000…
…000101011111010
3210021122221211020
4102031000223322
51111140304240
650145443310
710365601446
oct2215005372
9707587736
10305400570
11147432a72
1286340536
134b36bcc7
142c7bb826
151bc290d0
hex12340afa

305400570 has 32 divisors (see below), whose sum is σ = 742245120. Its totient is φ = 80408640.

The previous prime is 305400569. The next prime is 305400617. The reversal of 305400570 is 75004503.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 305400570.

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 15 ways as a sum of consecutive naturals, for example, 62061 + ... + 66800.

It is an arithmetic number, because the mean of its divisors is an integer number (23195160).

Almost surely, 2305400570 is an apocalyptic number.

305400570 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

305400570 is an abundant number, since it is smaller than the sum of its proper divisors (436844550).

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

305400570 is a wasteful number, since it uses less digits than its factorization.

305400570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128950.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 305400570 is about 17475.7137193306. The cubic root of 305400570 is about 673.4261052994.

The spelling of 305400570 in words is "three hundred five million, four hundred thousand, five hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 79 158 237 395 474 790 1185 2370 128861 257722 386583 644305 773166 1288610 1932915 3865830 10180019 20360038 30540057 50900095 61080114 101800190 152700285 305400570