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12770992 = 241324723
BaseRepresentation
bin110000101101…
…111010110000
3220000211111201
4300231322300
511232132432
61133420544
7213360133
oct60557260
926024451
1012770992
117233043
12433a754
132851c00
1419a621a
1511c3ee7
hexc2deb0

12770992 has 30 divisors (see below), whose sum is σ = 26799252. Its totient is φ = 5893056.

The previous prime is 12770971. The next prime is 12770999. The reversal of 12770992 is 29907721.

12770992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12770999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 343 + ... + 5065.

Almost surely, 212770992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12770992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13399626).

12770992 is an abundant number, since it is smaller than the sum of its proper divisors (14028260).

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

12770992 is a wasteful number, since it uses less digits than its factorization.

12770992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757 (or 4738 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 12770992 is about 3573.6524733107. The cubic root of 12770992 is about 233.7445772618.

The spelling of 12770992 in words is "twelve million, seven hundred seventy thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 13 16 26 52 104 169 208 338 676 1352 2704 4723 9446 18892 37784 61399 75568 122798 245596 491192 798187 982384 1596374 3192748 6385496 12770992