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305552013 = 3137999173
BaseRepresentation
bin10010001101100…
…101101010001101
3210021221122120020
4102031211222031
51111210131023
650153012353
710400102124
oct2215455215
9707848506
10305552013
11147526828
12863b40b9
134b3c2c10
142c81aabb
151bc58de3
hex12365a8d

305552013 has 16 divisors (see below), whose sum is σ = 444299520. Its totient is φ = 185649984.

The previous prime is 305552011. The next prime is 305552021. The reversal of 305552013 is 310255503.

It is not a de Polignac number, because 305552013 - 21 = 305552011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305552011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46506 + ... + 52667.

It is an arithmetic number, because the mean of its divisors is an integer number (27768720).

Almost surely, 2305552013 is an apocalyptic number.

It is an amenable number.

305552013 is a deficient number, since it is larger than the sum of its proper divisors (138747507).

305552013 is a wasteful number, since it uses less digits than its factorization.

305552013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99268.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 305552013 is about 17480.0461383830. The cubic root of 305552013 is about 673.5374004602.

The spelling of 305552013 in words is "three hundred five million, five hundred fifty-two thousand, thirteen".

Divisors: 1 3 13 39 79 237 1027 3081 99173 297519 1289249 3867747 7834667 23504001 101850671 305552013