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310010212111 = 1997155237963
BaseRepresentation
bin1001000001011100000…
…11000110111100001111
31002122012010220111020211
410200232003012330033
520034400103241421
6354230002423251
731253225216245
oct4405603067417
91078163814224
10310010212111
1110a524756876
12500b9961b27
1323306983342
141100c7a2795
1580e63d79e1
hex482e0c6f0f

310010212111 has 4 divisors (see below), whose sum is σ = 310165452072. Its totient is φ = 309854972152.

The previous prime is 310010212087. The next prime is 310010212117. The reversal of 310010212111 is 111212010013.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 310010212111 - 231 = 307862728463 is a prime.

It is a super-2 number, since 2×3100102121112 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 310010212091 and 310010212100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310010212117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77616985 + ... + 77620978.

It is an arithmetic number, because the mean of its divisors is an integer number (77541363018).

Almost surely, 2310010212111 is an apocalyptic number.

310010212111 is a deficient number, since it is larger than the sum of its proper divisors (155239961).

310010212111 is a wasteful number, since it uses less digits than its factorization.

310010212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155239960.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 310010212111 its reverse (111212010013), we get a palindrome (421222222124).

The spelling of 310010212111 in words is "three hundred ten billion, ten million, two hundred twelve thousand, one hundred eleven".

Divisors: 1 1997 155237963 310010212111