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48121431 = 3107149911
BaseRepresentation
bin1011011110010…
…0011001010111
310100112211012020
42313210121113
544304341211
64435224223
71123011501
oct267443127
9110484166
1048121431
1125188386
1214148073
139c7b327
146568d71
154358306
hex2de4657

48121431 has 8 divisors (see below), whose sum is σ = 64761984. Its totient is φ = 31780920.

The previous prime is 48121427. The next prime is 48121439. The reversal of 48121431 is 13412184.

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

It is not a de Polignac number, because 48121431 - 22 = 48121427 is a prime.

It is a super-2 number, since 2×481214312 = 4631344242975522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48121439) 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, 74635 + ... + 75276.

It is an arithmetic number, because the mean of its divisors is an integer number (8095248).

Almost surely, 248121431 is an apocalyptic number.

48121431 is a deficient number, since it is larger than the sum of its proper divisors (16640553).

48121431 is a wasteful number, since it uses less digits than its factorization.

48121431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150021.

The product of its digits is 768, while the sum is 24.

The square root of 48121431 is about 6936.9612223221. The cubic root of 48121431 is about 363.7303254554.

It can be divided in two parts, 481 and 21431, that added together give a palindrome (21912).

The spelling of 48121431 in words is "forty-eight million, one hundred twenty-one thousand, four hundred thirty-one".

Divisors: 1 3 107 321 149911 449733 16040477 48121431