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56470231 = 1572511433
BaseRepresentation
bin1101011101101…
…0101011010111
310221020222121001
43113122223113
5103424021411
65334204131
71253663146
oct327325327
9127228531
1056470231
112996aa14
1216ab3647
13b91244c
1476dd75d
154e56dc1
hex35daad7

56470231 has 8 divisors (see below), whose sum is σ = 57096144. Its totient is φ = 55848000.

The previous prime is 56470181. The next prime is 56470241. The reversal of 56470231 is 13207465.

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 56470231 - 211 = 56468183 is a prime.

It is a super-2 number, since 2×564702312 = 6377773978386722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56470231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56470241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38691 + ... + 40123.

It is an arithmetic number, because the mean of its divisors is an integer number (7137018).

Almost surely, 256470231 is an apocalyptic number.

56470231 is a deficient number, since it is larger than the sum of its proper divisors (625913).

56470231 is a wasteful number, since it uses less digits than its factorization.

56470231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 56470231 is about 7514.6677238585. The cubic root of 56470231 is about 383.6541097367.

Adding to 56470231 its reverse (13207465), we get a palindrome (69677696).

The spelling of 56470231 in words is "fifty-six million, four hundred seventy thousand, two hundred thirty-one".

Divisors: 1 157 251 1433 39407 224981 359683 56470231