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31031004214 = 272216500301
BaseRepresentation
bin11100111001100101…
…111000110000110110
32222002121022100021101
4130321211320300312
51002022414113324
622131102040314
72145656120020
oct347145706066
988077270241
1031031004214
1112184213831
12602027909a
132c06b69372
141705347010
15c193d1944
hex739978c36

31031004214 has 8 divisors (see below), whose sum is σ = 53196007248. Its totient is φ = 13299001800.

The previous prime is 31031004211. The next prime is 31031004233. The reversal of 31031004214 is 41240013013.

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 = 31031004191 and 31031004200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031004211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108250137 + ... + 1108250164.

It is an arithmetic number, because the mean of its divisors is an integer number (6649500906).

Almost surely, 231031004214 is an apocalyptic number.

31031004214 is a deficient number, since it is larger than the sum of its proper divisors (22165003034).

31031004214 is a wasteful number, since it uses less digits than its factorization.

31031004214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216500310.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31031004214 its reverse (41240013013), we get a palindrome (72271017227).

The spelling of 31031004214 in words is "thirty-one billion, thirty-one million, four thousand, two hundred fourteen".

Divisors: 1 2 7 14 2216500301 4433000602 15515502107 31031004214