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31031030234 = 221173533247
BaseRepresentation
bin11100111001100101…
…111111000111011010
32222002121100122222002
4130321211333013122
51002022420431414
622131102401002
72145656255621
oct347145770732
988077318862
1031031030234
1112184231336
126020290162
132c06b78169
1417053526b8
15c193d94de
hex73997f1da

31031030234 has 8 divisors (see below), whose sum is σ = 46767145728. Its totient is φ = 15441981660.

The previous prime is 31031030209. The next prime is 31031030263. The reversal of 31031030234 is 43203013013.

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

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, 36766202 + ... + 36767045.

It is an arithmetic number, because the mean of its divisors is an integer number (5845893216).

Almost surely, 231031030234 is an apocalyptic number.

31031030234 is a deficient number, since it is larger than the sum of its proper divisors (15736115494).

31031030234 is a wasteful number, since it uses less digits than its factorization.

31031030234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73533460.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31031030234 its reverse (43203013013), we get a palindrome (74234043247).

The spelling of 31031030234 in words is "thirty-one billion, thirty-one million, thirty thousand, two hundred thirty-four".

Divisors: 1 2 211 422 73533247 147066494 15515515117 31031030234