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311302222030 = 2531130222203
BaseRepresentation
bin1001000011110110000…
…11101111000011001110
31002202112012001101200001
410201323003233003032
520100021332101110
6355002114554514
731330234141102
oct4417303570316
91082465041601
10311302222030
11110027a96a68
12503ba598a3a
1323481551557
14110d2203902
15816ea4a63a
hex487b0ef0ce

311302222030 has 8 divisors (see below), whose sum is σ = 560343999672. Its totient is φ = 124520888808.

The previous prime is 311302222019. The next prime is 311302222067. The reversal of 311302222030 is 30222203113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 311302221989 and 311302222007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15565111092 + ... + 15565111111.

It is an arithmetic number, because the mean of its divisors is an integer number (70042999959).

Almost surely, 2311302222030 is an apocalyptic number.

311302222030 is a deficient number, since it is larger than the sum of its proper divisors (249041777642).

311302222030 is a wasteful number, since it uses less digits than its factorization.

311302222030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31130222210.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 311302222030 its reverse (30222203113), we get a palindrome (341524425143).

The spelling of 311302222030 in words is "three hundred eleven billion, three hundred two million, two hundred twenty-two thousand, thirty".

Divisors: 1 2 5 10 31130222203 62260444406 155651111015 311302222030