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55162423 = 318772029
BaseRepresentation
bin1101001001101…
…1011000110111
310211210112121201
43102123120313
5103110144143
65250153331
71236605251
oct322333067
9124715551
1055162423
1129157388
1216582847
13b5750b4
14747ccd1
154c9964d
hex349b637

55162423 has 8 divisors (see below), whose sum is σ = 57034880. Its totient is φ = 53295840.

The previous prime is 55162417. The next prime is 55162427. The reversal of 55162423 is 32426155.

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 55162423 - 225 = 21607991 is a prime.

It is a super-2 number, since 2×551624232 = 6085785822461858, 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 = 55162391 and 55162400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55162427) 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, 26173 + ... + 28201.

It is an arithmetic number, because the mean of its divisors is an integer number (7129360).

Almost surely, 255162423 is an apocalyptic number.

55162423 is a deficient number, since it is larger than the sum of its proper divisors (1872457).

55162423 is a wasteful number, since it uses less digits than its factorization.

55162423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937.

The product of its digits is 7200, while the sum is 28.

The square root of 55162423 is about 7427.1409707908. The cubic root of 55162423 is about 380.6692338963.

Adding to 55162423 its reverse (32426155), we get a palindrome (87588578).

The spelling of 55162423 in words is "fifty-five million, one hundred sixty-two thousand, four hundred twenty-three".

Divisors: 1 31 877 2029 27187 62899 1779433 55162423