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12775948 = 2223138869
BaseRepresentation
bin110000101111…
…001000001100
3220001002022021
4300233020030
511232312243
61133455524
7213410443
oct60571014
926032267
1012775948
117236839
1243415a4
132854243
1419a7d5a
1511c56ed
hexc2f20c

12775948 has 12 divisors (see below), whose sum is σ = 23330160. Its totient is φ = 6110192.

The previous prime is 12775943. The next prime is 12775951. The reversal of 12775948 is 84957721.

It is not an unprimeable number, because it can be changed into a prime (12775943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69343 + ... + 69526.

It is an arithmetic number, because the mean of its divisors is an integer number (1944180).

Almost surely, 212775948 is an apocalyptic number.

It is an amenable number.

12775948 is a deficient number, since it is larger than the sum of its proper divisors (10554212).

12775948 is a wasteful number, since it uses less digits than its factorization.

12775948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138896 (or 138894 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 12775948 is about 3574.3458142715. The cubic root of 12775948 is about 233.7748095337.

It can be divided in two parts, 1277 and 5948, that added together give a square (7225 = 852).

The spelling of 12775948 in words is "twelve million, seven hundred seventy-five thousand, nine hundred forty-eight".

Divisors: 1 2 4 23 46 92 138869 277738 555476 3193987 6387974 12775948