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48978188 = 2271749221
BaseRepresentation
bin1011101011010…
…1100100001100
310102011100102222
42322311210030
5100014300223
64505434512
71133210360
oct272654414
9112140388
1048978188
1125713046
121449ba38
13a1bb29c
14670d2a0
1544770c8
hex2eb590c

48978188 has 12 divisors (see below), whose sum is σ = 97956432. Its totient is φ = 20990640.

The previous prime is 48978131. The next prime is 48978197. The reversal of 48978188 is 88187984.

48978188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

48978188 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874583 + ... + 874638.

It is an arithmetic number, because the mean of its divisors is an integer number (8163036).

Almost surely, 248978188 is an apocalyptic number.

It is an amenable number.

48978188 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

48978188 is a wasteful number, since it uses less digits than its factorization.

48978188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749232 (or 1749230 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 53.

The square root of 48978188 is about 6998.4418265783. The cubic root of 48978188 is about 365.8762658170.

The spelling of 48978188 in words is "forty-eight million, nine hundred seventy-eight thousand, one hundred eighty-eight".

Divisors: 1 2 4 7 14 28 1749221 3498442 6996884 12244547 24489094 48978188