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45255505 = 531291971
BaseRepresentation
bin1010110010100…
…0101101010001
310011011012212211
42230220231101
543041134010
64253552121
71056444151
oct254505521
9104135784
1045255505
1123600149
12131a5641
1394b6a09
146020761
153e8e08a
hex2b28b51

45255505 has 8 divisors (see below), whose sum is σ = 56058624. Its totient is φ = 35036400.

The previous prime is 45255503. The next prime is 45255517. The reversal of 45255505 is 50555254.

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

It is not a de Polignac number, because 45255505 - 21 = 45255503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45255503) 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, 145831 + ... + 146140.

It is an arithmetic number, because the mean of its divisors is an integer number (7007328).

Almost surely, 245255505 is an apocalyptic number.

It is an amenable number.

45255505 is a deficient number, since it is larger than the sum of its proper divisors (10803119).

45255505 is a wasteful number, since it uses less digits than its factorization.

45255505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292007.

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 45255505 is about 6727.2211945201. The cubic root of 45255505 is about 356.3612485227.

The spelling of 45255505 in words is "forty-five million, two hundred fifty-five thousand, five hundred five".

Divisors: 1 5 31 155 291971 1459855 9051101 45255505