Search a number
-
+
31444048 = 244147933
BaseRepresentation
bin111011111110…
…0110001010000
32012011112010101
41313330301100
531022202143
63041542144
7531161416
oct167746120
965145111
1031444048
1116827419
12a644954
13668c35c
1442672b6
152b61b4d
hex1dfcc50

31444048 has 20 divisors (see below), whose sum is σ = 62410068. Its totient is φ = 15338240.

The previous prime is 31444019. The next prime is 31444079. The reversal of 31444048 is 84044413.

It can be written as a sum of positive squares in 2 ways, for example, as 7551504 + 23892544 = 2748^2 + 4888^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23311 + ... + 24622.

Almost surely, 231444048 is an apocalyptic number.

It is an amenable number.

31444048 is a deficient number, since it is larger than the sum of its proper divisors (30966020).

31444048 is a wasteful number, since it uses less digits than its factorization.

31444048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47982 (or 47976 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 31444048 is about 5607.4992643780. The cubic root of 31444048 is about 315.6308780789.

The spelling of 31444048 in words is "thirty-one million, four hundred forty-four thousand, forty-eight".

Divisors: 1 2 4 8 16 41 82 164 328 656 47933 95866 191732 383464 766928 1965253 3930506 7861012 15722024 31444048