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48908821 = 137947623
BaseRepresentation
bin1011101010010…
…0101000010101
310102000211021211
42322210220111
5100010040241
64504141421
71132501213
oct272445025
9112024254
1048908821
1125675a15
1214467871
13a195840
1466d1cb3
154461781
hex2ea4a15

48908821 has 8 divisors (see below), whose sum is σ = 53338880. Its totient is φ = 44574192.

The previous prime is 48908809. The next prime is 48908837. The reversal of 48908821 is 12880984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48908821 - 27 = 48908693 is a prime.

It is a super-2 number, since 2×489088212 = 4784145543220082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48908801) 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, 22785 + ... + 24838.

It is an arithmetic number, because the mean of its divisors is an integer number (6667360).

Almost surely, 248908821 is an apocalyptic number.

It is an amenable number.

48908821 is a deficient number, since it is larger than the sum of its proper divisors (4430059).

48908821 is a wasteful number, since it uses less digits than its factorization.

48908821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47715.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 48908821 is about 6993.4841817223. The cubic root of 48908821 is about 365.7034560348.

It can be divided in two parts, 48908 and 821, that added together give a square (49729 = 2232).

The spelling of 48908821 in words is "forty-eight million, nine hundred eight thousand, eight hundred twenty-one".

Divisors: 1 13 79 1027 47623 619099 3762217 48908821