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12830070 = 23511172287
BaseRepresentation
bin110000111100…
…010101110110
3220010211112210
4300330111312
511241030240
61134554250
7214024311
oct60742566
926124483
1012830070
117273470
124368986
132872a76
1419bd978
1511d6780
hexc3c576

12830070 has 64 divisors (see below), whose sum is σ = 35582976. Its totient is φ = 2926080.

The previous prime is 12830047. The next prime is 12830101. The reversal of 12830070 is 7003821.

It is a super-2 number, since 2×128300702 = 329221392409800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4467 + ... + 6753.

It is an arithmetic number, because the mean of its divisors is an integer number (555984).

Almost surely, 212830070 is an apocalyptic number.

12830070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12830070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17791488).

12830070 is an abundant number, since it is smaller than the sum of its proper divisors (22752906).

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

12830070 is a wasteful number, since it uses less digits than its factorization.

12830070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 12830070 is about 3581.9087090544. The cubic root of 12830070 is about 234.1044533305.

Adding to 12830070 its reverse (7003821), we get a palindrome (19833891).

The spelling of 12830070 in words is "twelve million, eight hundred thirty thousand, seventy".

Divisors: 1 2 3 5 6 10 11 15 17 22 30 33 34 51 55 66 85 102 110 165 170 187 255 330 374 510 561 935 1122 1870 2287 2805 4574 5610 6861 11435 13722 22870 25157 34305 38879 50314 68610 75471 77758 116637 125785 150942 194395 233274 251570 377355 388790 427669 583185 754710 855338 1166370 1283007 2138345 2566014 4276690 6415035 12830070