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54190631 = 116180761
BaseRepresentation
bin1100111010111…
…0001000100111
310202222011120102
43032232020213
5102333100011
65213254315
71225420115
oct316561047
9122864512
1054190631
1128653250
121619439b
13b2c4981
1472a8ab5
154b5673b
hex33ae227

54190631 has 8 divisors (see below), whose sum is σ = 60086928. Its totient is φ = 48456000.

The previous prime is 54190627. The next prime is 54190637. The reversal of 54190631 is 13609145.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54190631 - 22 = 54190627 is a prime.

It is a super-2 number, since 2×541906312 = 5873248976356322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54190594 and 54190603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54190637) 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, 39710 + ... + 41051.

It is an arithmetic number, because the mean of its divisors is an integer number (7510866).

Almost surely, 254190631 is an apocalyptic number.

54190631 is a deficient number, since it is larger than the sum of its proper divisors (5896297).

54190631 is a wasteful number, since it uses less digits than its factorization.

54190631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80833.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 54190631 is about 7361.4285977655. The cubic root of 54190631 is about 378.4205704028.

Adding to 54190631 its reverse (13609145), we get a palindrome (67799776).

The spelling of 54190631 in words is "fifty-four million, one hundred ninety thousand, six hundred thirty-one".

Divisors: 1 11 61 671 80761 888371 4926421 54190631