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55131514 = 2181152297
BaseRepresentation
bin1101001001001…
…1110101111010
310211201222012221
43102103311322
5103103202024
65245354254
71236416164
oct322236572
9124658187
1055131514
1129136139
121656898a
13b563cc9
147471934
154c903e4
hex3493d7a

55131514 has 8 divisors (see below), whose sum is σ = 83154708. Its totient is φ = 27413280.

The previous prime is 55131509. The next prime is 55131541. The reversal of 55131514 is 41513155.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38850289 + 16281225 = 6233^2 + 4035^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75787 + ... + 76510.

Almost surely, 255131514 is an apocalyptic number.

55131514 is a deficient number, since it is larger than the sum of its proper divisors (28023194).

55131514 is a wasteful number, since it uses less digits than its factorization.

55131514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152480.

The product of its digits is 1500, while the sum is 25.

The square root of 55131514 is about 7425.0598650785. The cubic root of 55131514 is about 380.5981208510.

Adding to 55131514 its reverse (41513155), we get a palindrome (96644669).

It can be divided in two parts, 5513151 and 4, that added together give a palindrome (5513155).

The spelling of 55131514 in words is "fifty-five million, one hundred thirty-one thousand, five hundred fourteen".

Divisors: 1 2 181 362 152297 304594 27565757 55131514