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12952530 = 2325712027
BaseRepresentation
bin110001011010…
…001111010010
3220101001112100
4301122033102
511303440110
61141341230
7215044323
oct61321722
926331470
1012952530
117347478
124407816
1328b6726
141a1244a
15120cbc0
hexc5a3d2

12952530 has 48 divisors (see below), whose sum is σ = 34167744. Its totient is φ = 3403680.

The previous prime is 12952517. The next prime is 12952549. The reversal of 12952530 is 3525921.

12952530 is a `hidden beast` number, since 129 + 5 + 2 + 530 = 666.

12952530 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12952494 and 12952503.

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, 5377 + ... + 7403.

It is an arithmetic number, because the mean of its divisors is an integer number (711828).

Almost surely, 212952530 is an apocalyptic number.

12952530 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 12952530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17083872).

12952530 is an abundant number, since it is smaller than the sum of its proper divisors (21215214).

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

12952530 is a wasteful number, since it uses less digits than its factorization.

12952530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 12952530 is about 3598.9623504560. The cubic root of 12952530 is about 234.8469200724.

The spelling of 12952530 in words is "twelve million, nine hundred fifty-two thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 71 90 142 213 355 426 639 710 1065 1278 2027 2130 3195 4054 6081 6390 10135 12162 18243 20270 30405 36486 60810 91215 143917 182430 287834 431751 719585 863502 1295253 1439170 2158755 2590506 4317510 6476265 12952530