Search a number
-
+
48915620 = 22513188137
BaseRepresentation
bin1011101010011…
…0010010100100
310102001011121122
42322212102210
5100010244440
64504233112
71132530065
oct272462244
9112034548
1048915620
1125680036
121446b798
13a198970
1466d456c
1544637b5
hex2ea64a4

48915620 has 24 divisors (see below), whose sum is σ = 110625144. Its totient is φ = 18061056.

The previous prime is 48915619. The next prime is 48915623. The reversal of 48915620 is 2651984.

It can be written as a sum of positive squares in 4 ways, for example, as 6431296 + 42484324 = 2536^2 + 6518^2 .

It is not an unprimeable number, because it can be changed into a prime (48915623) 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, 93809 + ... + 94328.

It is an arithmetic number, because the mean of its divisors is an integer number (4609381).

Almost surely, 248915620 is an apocalyptic number.

It is an amenable number.

48915620 is an abundant number, since it is smaller than the sum of its proper divisors (61709524).

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

48915620 is a wasteful number, since it uses less digits than its factorization.

48915620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188159 (or 188157 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 48915620 is about 6993.9702601598. The cubic root of 48915620 is about 365.7204011894.

The spelling of 48915620 in words is "forty-eight million, nine hundred fifteen thousand, six hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 188137 376274 752548 940685 1881370 2445781 3762740 4891562 9783124 12228905 24457810 48915620