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12812058 = 2327234421
BaseRepresentation
bin110000110111…
…111100011010
3220002220211200
4300313330122
511234441213
61134335030
7213620640
oct60677432
926086750
1012812058
117260986
12435a476
1328677cc
1419b7190
1511d1273
hexc37f1a

12812058 has 48 divisors (see below), whose sum is σ = 33111936. Its totient is φ = 3500640.

The previous prime is 12812057. The next prime is 12812071. The reversal of 12812058 is 85021821.

It is not an unprimeable number, because it can be changed into a prime (12812057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 688 + ... + 5108.

It is an arithmetic number, because the mean of its divisors is an integer number (689832).

Almost surely, 212812058 is an apocalyptic number.

12812058 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12812058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16555968).

12812058 is an abundant number, since it is smaller than the sum of its proper divisors (20299878).

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

12812058 is a wasteful number, since it uses less digits than its factorization.

12812058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459 (or 4456 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 12812058 is about 3579.3935240485. The cubic root of 12812058 is about 233.9948497661.

Adding to 12812058 its reverse (85021821), we get a palindrome (97833879).

The spelling of 12812058 in words is "twelve million, eight hundred twelve thousand, fifty-eight".

Divisors: 1 2 3 6 7 9 14 18 21 23 42 46 63 69 126 138 161 207 322 414 483 966 1449 2898 4421 8842 13263 26526 30947 39789 61894 79578 92841 101683 185682 203366 278523 305049 557046 610098 711781 915147 1423562 1830294 2135343 4270686 6406029 12812058