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1210081014 = 232239730133
BaseRepresentation
bin100100000100000…
…0101111011110110
310010022222111002100
41020020011323312
54434240043024
6320024122530
741662342662
oct11010057366
93108874070
101210081014
1157107185a
12299306446
13163913b8c
14b69d58a2
157137c7c9
hex48205ef6

1210081014 has 48 divisors (see below), whose sum is σ = 2764131552. Its totient is φ = 381832704.

The previous prime is 1210081009. The next prime is 1210081021. The reversal of 1210081014 is 4101800121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25092 + ... + 55224.

It is an arithmetic number, because the mean of its divisors is an integer number (57586074).

Almost surely, 21210081014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210081014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382065776).

1210081014 is an abundant number, since it is smaller than the sum of its proper divisors (1554050538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210081014 is a wasteful number, since it uses less digits than its factorization.

1210081014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30261 (or 30258 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 1210081014 is about 34786.2187367354. The cubic root of 1210081014 is about 1065.6260182468.

Adding to 1210081014 its reverse (4101800121), we get a palindrome (5311881135).

The spelling of 1210081014 in words is "one billion, two hundred ten million, eighty-one thousand, fourteen".

Divisors: 1 2 3 6 9 18 23 46 69 97 138 194 207 291 414 582 873 1746 2231 4462 6693 13386 20079 30133 40158 60266 90399 180798 271197 542394 693059 1386118 2079177 2922901 4158354 5845802 6237531 8768703 12475062 17537406 26306109 52612218 67226723 134453446 201680169 403360338 605040507 1210081014