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12830772 = 2237397151
BaseRepresentation
bin110000111100…
…100000110100
3220010212111210
4300330200310
511241041042
61135001420
7214026333
oct60744064
926125453
1012830772
117273a49
124369270
132873196
1419bdd1a
1511d6a9c
hexc3c834

12830772 has 48 divisors (see below), whose sum is σ = 30864512. Its totient is φ = 4147200.

The previous prime is 12830771. The next prime is 12830791. The reversal of 12830772 is 27703821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12830771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84897 + ... + 85047.

Almost surely, 212830772 is an apocalyptic number.

12830772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12830772 is an abundant number, since it is smaller than the sum of its proper divisors (18033740).

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

12830772 is a wasteful number, since it uses less digits than its factorization.

12830772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 12830772 is about 3582.0067001612. The cubic root of 12830772 is about 234.1087229442.

The spelling of 12830772 in words is "twelve million, eight hundred thirty thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 73 97 146 151 194 219 291 292 302 388 438 453 582 604 876 906 1164 1812 7081 11023 14162 14647 21243 22046 28324 29294 33069 42486 43941 44092 58588 66138 84972 87882 132276 175764 1069231 2138462 3207693 4276924 6415386 12830772