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48818021 = 79297507
BaseRepresentation
bin1011101000111…
…0011101100101
310101212012201212
42322032131211
544444134041
64502201205
71131642410
oct272163545
9111765655
1048818021
112561377a
1214423205
13a163405
1466aab77
1544448eb
hex2e8e765

48818021 has 8 divisors (see below), whose sum is σ = 55859520. Its totient is φ = 41793408.

The previous prime is 48818017. The next prime is 48818039. The reversal of 48818021 is 12081884.

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 48818021 - 22 = 48818017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48818041) 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, 2750 + ... + 10256.

It is an arithmetic number, because the mean of its divisors is an integer number (6982440).

Almost surely, 248818021 is an apocalyptic number.

It is an amenable number.

48818021 is a deficient number, since it is larger than the sum of its proper divisors (7041499).

48818021 is an equidigital number, since it uses as much as digits as its factorization.

48818021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8443.

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 48818021 is about 6986.9894088942. The cubic root of 48818021 is about 365.4770044226.

The spelling of 48818021 in words is "forty-eight million, eight hundred eighteen thousand, twenty-one".

Divisors: 1 7 929 6503 7507 52549 6974003 48818021