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304552740 = 22355075879
BaseRepresentation
bin10010001001110…
…001101100100100
3210020001212211010
4102021301230210
51110431141430
650115342220
710355440602
oct2211615444
9706055733
10304552740
11146a03a88
1285bb1970
134b13312b
142c63a872
151bb0ccb0
hex12271b24

304552740 has 24 divisors (see below), whose sum is σ = 852747840. Its totient is φ = 81214048.

The previous prime is 304552733. The next prime is 304552757. The reversal of 304552740 is 47255403.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 304552698 and 304552707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2537880 + ... + 2537999.

It is an arithmetic number, because the mean of its divisors is an integer number (35531160).

Almost surely, 2304552740 is an apocalyptic number.

304552740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304552740 is an abundant number, since it is smaller than the sum of its proper divisors (548195100).

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

304552740 is a wasteful number, since it uses less digits than its factorization.

304552740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5075891 (or 5075889 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 304552740 is about 17451.4394821745. The cubic root of 304552740 is about 672.8023561746.

The spelling of 304552740 in words is "three hundred four million, five hundred fifty-two thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 5075879 10151758 15227637 20303516 25379395 30455274 50758790 60910548 76138185 101517580 152276370 304552740