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58378631 = 83703357
BaseRepresentation
bin1101111010110…
…0100110000111
311001211221102112
43132230212013
5104421104011
65443131235
71306132043
oct336544607
9131757375
1058378631
112aa53803
1217673b1b
13c12cc8c
147a79023
1551d258b
hex37ac987

58378631 has 4 divisors (see below), whose sum is σ = 59082072. Its totient is φ = 57675192.

The previous prime is 58378627. The next prime is 58378633. The reversal of 58378631 is 13687385.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13687385 = 52737477.

It is a cyclic number.

It is not a de Polignac number, because 58378631 - 22 = 58378627 is a prime.

It is a super-2 number, since 2×583786312 = 6816129114868322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58378633) 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, 351596 + ... + 351761.

It is an arithmetic number, because the mean of its divisors is an integer number (14770518).

Almost surely, 258378631 is an apocalyptic number.

58378631 is a deficient number, since it is larger than the sum of its proper divisors (703441).

58378631 is an equidigital number, since it uses as much as digits as its factorization.

58378631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703440.

The product of its digits is 120960, while the sum is 41.

The square root of 58378631 is about 7640.5910111718. The cubic root of 58378631 is about 387.9281560924.

The spelling of 58378631 in words is "fifty-eight million, three hundred seventy-eight thousand, six hundred thirty-one".

Divisors: 1 83 703357 58378631