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48945481 = 134387559
BaseRepresentation
bin1011101010110…
…1100101001001
310102002200120121
42322231211021
5100012223411
64505023241
71133013124
oct272554511
9112080517
1048945481
11256a0512
1214484b21
13a1a9430
1467013bb
15446c571
hex2ead949

48945481 has 8 divisors (see below), whose sum is σ = 53936960. Its totient is φ = 44129232.

The previous prime is 48945473. The next prime is 48945511. The reversal of 48945481 is 18454984.

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 48945481 - 23 = 48945473 is a prime.

It is a super-2 number, since 2×489454812 = 4791320220642722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48945451) 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, 43221 + ... + 44338.

It is an arithmetic number, because the mean of its divisors is an integer number (6742120).

Almost surely, 248945481 is an apocalyptic number.

It is an amenable number.

48945481 is a deficient number, since it is larger than the sum of its proper divisors (4991479).

48945481 is a wasteful number, since it uses less digits than its factorization.

48945481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87615.

The product of its digits is 184320, while the sum is 43.

The square root of 48945481 is about 6996.1047019038. The cubic root of 48945481 is about 365.7948052033.

The spelling of 48945481 in words is "forty-eight million, nine hundred forty-five thousand, four hundred eighty-one".

Divisors: 1 13 43 559 87559 1138267 3765037 48945481