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1072379837 = 8312920239
BaseRepresentation
bin111111111010110…
…011011110111101
32202201212112120202
4333322303132331
54144012123322
6254224453245
735401035554
oct7772633675
92681775522
101072379837
1150036a931
1225b17a225
1314122cca9
14a25ccd9b
156422c292
hex3feb37bd

1072379837 has 4 divisors (see below), whose sum is σ = 1085300160. Its totient is φ = 1059459516.

The previous prime is 1072379821. The next prime is 1072379863. The reversal of 1072379837 is 7389732701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1072379837 - 24 = 1072379821 is a prime.

It is a super-2 number, since 2×10723798372 = 2299997029608293138, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1072379791 and 1072379800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072379137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6460037 + ... + 6460202.

It is an arithmetic number, because the mean of its divisors is an integer number (271325040).

Almost surely, 21072379837 is an apocalyptic number.

It is an amenable number.

1072379837 is a deficient number, since it is larger than the sum of its proper divisors (12920323).

1072379837 is an equidigital number, since it uses as much as digits as its factorization.

1072379837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12920322.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 1072379837 is about 32747.2111331637. The cubic root of 1072379837 is about 1023.5668527995.

The spelling of 1072379837 in words is "one billion, seventy-two million, three hundred seventy-nine thousand, eight hundred thirty-seven".

Divisors: 1 83 12920239 1072379837