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305011424 = 2537257611
BaseRepresentation
bin10010001011100…
…001101011100000
3210020221012000102
4102023201223200
51111040331144
650133241532
710362361064
oct2213415340
9706835012
10305011424
11147197663
12861932a8
134b263b43
142c719aa4
151bb9db4e
hex122e1ae0

305011424 has 24 divisors (see below), whose sum is σ = 616723128. Its totient is φ = 148383360.

The previous prime is 305011391. The next prime is 305011429. The reversal of 305011424 is 424110503.

It is a junction number, because it is equal to n+sod(n) for n = 305011396 and 305011405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305011429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127622 + ... + 129989.

It is an arithmetic number, because the mean of its divisors is an integer number (25696797).

Almost surely, 2305011424 is an apocalyptic number.

It is an amenable number.

305011424 is an abundant number, since it is smaller than the sum of its proper divisors (311711704).

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

305011424 is a wasteful number, since it uses less digits than its factorization.

305011424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257658 (or 257650 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 305011424 is about 17464.5762616790. The cubic root of 305011424 is about 673.1399538345.

Adding to 305011424 its reverse (424110503), we get a palindrome (729121927).

The spelling of 305011424 in words is "three hundred five million, eleven thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 32 37 74 148 296 592 1184 257611 515222 1030444 2060888 4121776 8243552 9531607 19063214 38126428 76252856 152505712 305011424