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48645381 = 317953831
BaseRepresentation
bin1011100110010…
…0010100000101
310101112102220210
42321210110011
544423123011
64454350033
71130323161
oct271442405
9111472823
1048645381
1125505aa4
121435b319
13a102965
146663ca1
15440d6a6
hex2e64505

48645381 has 8 divisors (see below), whose sum is σ = 68675904. Its totient is φ = 30522560.

The previous prime is 48645367. The next prime is 48645433. The reversal of 48645381 is 18354684.

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 48645381 - 25 = 48645349 is a prime.

It is a super-2 number, since 2×486453812 = 4732746185270322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48645581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476865 + ... + 476966.

It is an arithmetic number, because the mean of its divisors is an integer number (8584488).

Almost surely, 248645381 is an apocalyptic number.

It is an amenable number.

48645381 is a deficient number, since it is larger than the sum of its proper divisors (20030523).

48645381 is a wasteful number, since it uses less digits than its factorization.

48645381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953851.

The product of its digits is 92160, while the sum is 39.

The square root of 48645381 is about 6974.6240758911. The cubic root of 48645381 is about 365.0456713977.

The spelling of 48645381 in words is "forty-eight million, six hundred forty-five thousand, three hundred eighty-one".

Divisors: 1 3 17 51 953831 2861493 16215127 48645381