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55231351 = 717464129
BaseRepresentation
bin1101001010110…
…0001101110111
310211221001011121
43102230031313
5103114400401
65251444411
71240313230
oct322541567
9124831147
1055231351
11291a414a
12165b6707
13b59a596
14749a087
154caeca1
hex34ac377

55231351 has 8 divisors (see below), whose sum is σ = 66834720. Its totient is φ = 44556288.

The previous prime is 55231339. The next prime is 55231361. The reversal of 55231351 is 15313255.

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

It is not a de Polignac number, because 55231351 - 29 = 55230839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55231301) 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, 231946 + ... + 232183.

It is an arithmetic number, because the mean of its divisors is an integer number (8354340).

Almost surely, 255231351 is an apocalyptic number.

55231351 is a deficient number, since it is larger than the sum of its proper divisors (11603369).

55231351 is a wasteful number, since it uses less digits than its factorization.

55231351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464153.

The product of its digits is 2250, while the sum is 25.

The square root of 55231351 is about 7431.7798002901. The cubic root of 55231351 is about 380.8277225090.

The spelling of 55231351 in words is "fifty-five million, two hundred thirty-one thousand, three hundred fifty-one".

Divisors: 1 7 17 119 464129 3248903 7890193 55231351