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48645031 = 113430487
BaseRepresentation
bin1011100110010…
…0001110100111
310101112102102211
42321210032213
544423120111
64454344251
71130322151
oct271441647
9111472384
1048645031
1125505806
121435b087
13a102756
146663ad1
15440d521
hex2e643a7

48645031 has 4 divisors (see below), whose sum is σ = 49075632. Its totient is φ = 48214432.

The previous prime is 48644993. The next prime is 48645053. The reversal of 48645031 is 13054684.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48645031 - 27 = 48644903 is a prime.

It is a super-2 number, since 2×486450312 = 4732678081981922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48644984 and 48645002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48645631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215131 + ... + 215356.

It is an arithmetic number, because the mean of its divisors is an integer number (12268908).

Almost surely, 248645031 is an apocalyptic number.

48645031 is a deficient number, since it is larger than the sum of its proper divisors (430601).

48645031 is a wasteful number, since it uses less digits than its factorization.

48645031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430600.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 48645031 is about 6974.5989848879. The cubic root of 48645031 is about 365.0447959032.

The spelling of 48645031 in words is "forty-eight million, six hundred forty-five thousand, thirty-one".

Divisors: 1 113 430487 48645031