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48121755 = 3511291647
BaseRepresentation
bin1011011110010…
…0011110011011
310100112211122020
42313210132123
544304344010
64435225523
71123012443
oct267443633
9110484566
1048121755
1125188650
12141482a3
139c7b516
146569123
154358470
hex2de479b

48121755 has 16 divisors (see below), whose sum is σ = 83994624. Its totient is φ = 23331680.

The previous prime is 48121751. The next prime is 48121769. The reversal of 48121755 is 55712184.

It is not a de Polignac number, because 48121755 - 22 = 48121751 is a prime.

It is a super-3 number, since 3×481217553 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (48121751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145659 + ... + 145988.

It is an arithmetic number, because the mean of its divisors is an integer number (5249664).

Almost surely, 248121755 is an apocalyptic number.

48121755 is a deficient number, since it is larger than the sum of its proper divisors (35872869).

48121755 is a wasteful number, since it uses less digits than its factorization.

48121755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291666.

The product of its digits is 11200, while the sum is 33.

The square root of 48121755 is about 6936.9845754477. The cubic root of 48121755 is about 363.7311417816.

The spelling of 48121755 in words is "forty-eight million, one hundred twenty-one thousand, seven hundred fifty-five".

Divisors: 1 3 5 11 15 33 55 165 291647 874941 1458235 3208117 4374705 9624351 16040585 48121755