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12542944 = 25391967
BaseRepresentation
bin101111110110…
…001111100000
3212121020200111
4233312033200
511202333234
61124501104
7211420231
oct57661740
925536614
1012542944
117097777
12424a794
1327a217b
141947088
15117b664
hexbf63e0

12542944 has 12 divisors (see below), whose sum is σ = 24693984. Its totient is φ = 6271456.

The previous prime is 12542939. The next prime is 12542947. The reversal of 12542944 is 44924521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195952 + ... + 196015.

It is an arithmetic number, because the mean of its divisors is an integer number (2057832).

Almost surely, 212542944 is an apocalyptic number.

It is an amenable number.

12542944 is a deficient number, since it is larger than the sum of its proper divisors (12151040).

12542944 is an equidigital number, since it uses as much as digits as its factorization.

12542944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391977 (or 391969 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 12542944 is about 3541.6018974470. The cubic root of 12542944 is about 232.3449090940.

The spelling of 12542944 in words is "twelve million, five hundred forty-two thousand, nine hundred forty-four".

Divisors: 1 2 4 8 16 32 391967 783934 1567868 3135736 6271472 12542944