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31230313330313 = 465745767146527
BaseRepresentation
bin1110001100111010111111…
…01110110111011010001001
311002120120220020021121020002
413012131133232313122021
513043134140203032223
6150231001411412345
76402213164220446
oct706353756673211
9132516806247202
1031230313330313
119a5077977a949
1236047888b40b5
13145700cca64a6
1479d7ab7a29cd
1539258ad81e28
hex1c675fbb7689

31230313330313 has 8 divisors (see below), whose sum is σ = 31237915141632. Its totient is φ = 31222711912896.

The previous prime is 31230313330261. The next prime is 31230313330331. The reversal of 31230313330313 is 31303331303213.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31230313330313 - 214 = 31230313313929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31230313300313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213063656 + ... + 213210182.

It is an arithmetic number, because the mean of its divisors is an integer number (3904739392704).

Almost surely, 231230313330313 is an apocalyptic number.

It is an amenable number.

31230313330313 is a deficient number, since it is larger than the sum of its proper divisors (7601811319).

31230313330313 is a wasteful number, since it uses less digits than its factorization.

31230313330313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196951.

The product of its (nonzero) digits is 13122, while the sum is 29.

Adding to 31230313330313 its reverse (31303331303213), we get a palindrome (62533644633526).

The spelling of 31230313330313 in words is "thirty-one trillion, two hundred thirty billion, three hundred thirteen million, three hundred thirty thousand, three hundred thirteen".

Divisors: 1 4657 45767 146527 213136919 682376239 6706101209 31230313330313