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55132430 = 255513243
BaseRepresentation
bin1101001001010…
…0000100001110
310211202000110212
43102110010032
5103103214210
65245402422
71236421643
oct322240416
9124660425
1055132430
11291368a1
1216569412
13b564552
147471dca
154c90805
hex349410e

55132430 has 8 divisors (see below), whose sum is σ = 99238392. Its totient is φ = 22052968.

The previous prime is 55132397. The next prime is 55132453. The reversal of 55132430 is 3423155.

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

It is a junction number, because it is equal to n+sod(n) for n = 55132396 and 55132405.

It is a congruent number.

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, 2756612 + ... + 2756631.

It is an arithmetic number, because the mean of its divisors is an integer number (12404799).

Almost surely, 255132430 is an apocalyptic number.

55132430 is a deficient number, since it is larger than the sum of its proper divisors (44105962).

55132430 is a wasteful number, since it uses less digits than its factorization.

55132430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513250.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 55132430 is about 7425.1215478267. The cubic root of 55132430 is about 380.6002286954.

Adding to 55132430 its reverse (3423155), we get a palindrome (58555585).

The spelling of 55132430 in words is "fifty-five million, one hundred thirty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 5513243 11026486 27566215 55132430