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310400230 = 25743103123
BaseRepresentation
bin10010100000000…
…101010011100110
3210122001222001211
4102200011103212
51113430301410
650444542034
710456233640
oct2240052346
9718058054
10310400230
1114a238318
1287b5191a
134c3cc89a
142d31d890
151c3b568a
hex128054e6

310400230 has 32 divisors (see below), whose sum is σ = 653393664. Its totient is φ = 103946976.

The previous prime is 310400221. The next prime is 310400287. The reversal of 310400230 is 32004013.

It is a self number, because there is not a number n which added to its sum of digits gives 310400230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48552 + ... + 54571.

It is an arithmetic number, because the mean of its divisors is an integer number (20418552).

Almost surely, 2310400230 is an apocalyptic number.

310400230 is an abundant number, since it is smaller than the sum of its proper divisors (342993434).

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

310400230 is a wasteful number, since it uses less digits than its factorization.

310400230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103180.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 310400230 is about 17618.1789637862. The cubic root of 310400230 is about 677.0810797832.

Adding to 310400230 its reverse (32004013), we get a palindrome (342404243).

The spelling of 310400230 in words is "three hundred ten million, four hundred thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 43 70 86 215 301 430 602 1505 3010 103123 206246 515615 721861 1031230 1443722 3609305 4434289 7218610 8868578 22171445 31040023 44342890 62080046 155200115 310400230