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31030112122 = 223687655003
BaseRepresentation
bin11100111001100010…
…011110111101111010
32222002112122000112221
4130321202132331322
51002022202041442
622131030554254
72145645413122
oct347142367572
988075560487
1031030112122
1112183764569
12601bb0898a
132c069162b9
141705193c82
15c192a7467
hex73989ef7a

31030112122 has 8 divisors (see below), whose sum is σ = 46547204256. Its totient is φ = 15514377372.

The previous prime is 31030112093. The next prime is 31030112131. The reversal of 31030112122 is 22121103013.

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 = 31030112096 and 31030112105.

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, 280128 + ... + 374875.

It is an arithmetic number, because the mean of its divisors is an integer number (5818400532).

Almost surely, 231030112122 is an apocalyptic number.

31030112122 is a deficient number, since it is larger than the sum of its proper divisors (15517092134).

31030112122 is a wasteful number, since it uses less digits than its factorization.

31030112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678692.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31030112122 its reverse (22121103013), we get a palindrome (53151215135).

The spelling of 31030112122 in words is "thirty-one billion, thirty million, one hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 23687 47374 655003 1310006 15515056061 31030112122