Search a number
-
+
30275030253 = 3134318053089
BaseRepresentation
bin11100001100100010…
…000100110011101101
32220010220210212221210
4130030202010303231
5444000401432003
621524054545033
72121146340216
oct341442046355
986126725853
1030275030253
1111926513366
125a4b068179
132b1635c6b0
141672b9c40d
15bc2d54503
hex70c884ced

30275030253 has 16 divisors (see below), whose sum is σ = 44482813760. Its totient is φ = 18197512704.

The previous prime is 30275030251. The next prime is 30275030263. The reversal of 30275030253 is 35203057203.

It is not a de Polignac number, because 30275030253 - 21 = 30275030251 is a prime.

It is a super-3 number, since 3×302750302533 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

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 30275030253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30275030251) 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, 9024868 + ... + 9028221.

It is an arithmetic number, because the mean of its divisors is an integer number (2780175860).

Almost surely, 230275030253 is an apocalyptic number.

It is an amenable number.

30275030253 is a deficient number, since it is larger than the sum of its proper divisors (14207783507).

30275030253 is a wasteful number, since it uses less digits than its factorization.

30275030253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18053148.

The product of its (nonzero) digits is 18900, while the sum is 30.

Adding to 30275030253 its reverse (35203057203), we get a palindrome (65478087456).

The spelling of 30275030253 in words is "thirty billion, two hundred seventy-five million, thirty thousand, two hundred fifty-three".

Divisors: 1 3 13 39 43 129 559 1677 18053089 54159267 234690157 704070471 776282827 2328848481 10091676751 30275030253