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48990078 = 2322721671
BaseRepresentation
bin1011101011100…
…0011101111110
310102011221202100
42322320131332
5100020140303
64510005530
71133260134
oct272703576
9112157670
1048990078
1125720a75
12144a68a6
13a1c3817
146713754
15447a8a3
hex2eb877e

48990078 has 12 divisors (see below), whose sum is σ = 106145208. Its totient is φ = 16330020.

The previous prime is 48990047. The next prime is 48990079. The reversal of 48990078 is 87009984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48990079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1360818 + ... + 1360853.

It is an arithmetic number, because the mean of its divisors is an integer number (8845434).

Almost surely, 248990078 is an apocalyptic number.

48990078 is an abundant number, since it is smaller than the sum of its proper divisors (57155130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48990078 is a wasteful number, since it uses less digits than its factorization.

48990078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721679 (or 2721676 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 48990078 is about 6999.2912498338. The cubic root of 48990078 is about 365.9058702661.

The spelling of 48990078 in words is "forty-eight million, nine hundred ninety thousand, seventy-eight".

Divisors: 1 2 3 6 9 18 2721671 5443342 8165013 16330026 24495039 48990078