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12750378 = 233116833
BaseRepresentation
bin110000101000…
…111000101010
3212222210020020
4300220320222
511231003003
61133141310
7213243054
oct60507052
925883206
1012750378
117219603
12432a836
132845704
14199c8d4
1511bcd53
hexc28e2a

12750378 has 16 divisors (see below), whose sum is σ = 25586496. Its totient is φ = 4235840.

The previous prime is 12750373. The next prime is 12750379. The reversal of 12750378 is 87305721.

It is not an unprimeable number, because it can be changed into a prime (12750371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1551 + ... + 5282.

It is an arithmetic number, because the mean of its divisors is an integer number (1599156).

Almost surely, 212750378 is an apocalyptic number.

12750378 is an abundant number, since it is smaller than the sum of its proper divisors (12836118).

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

12750378 is a wasteful number, since it uses less digits than its factorization.

12750378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7149.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 12750378 is about 3570.7671444663. The cubic root of 12750378 is about 233.6187450750.

It can be divided in two parts, 127 and 50378, that added together give a palindrome (50505).

The spelling of 12750378 in words is "twelve million, seven hundred fifty thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 311 622 933 1866 6833 13666 20499 40998 2125063 4250126 6375189 12750378