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48172782 = 2372163853
BaseRepresentation
bin1011011111000…
…0111011101110
310100122102122010
42313300323232
544313012112
64440302050
71123314300
oct267607356
9110572563
1048172782
1125212a19
1214171926
139c98808
14657d970
15436863c
hex2df0eee

48172782 has 24 divisors (see below), whose sum is σ = 112076136. Its totient is φ = 13763568.

The previous prime is 48172759. The next prime is 48172783. The reversal of 48172782 is 28727184.

It is a self number, because there is not a number n which added to its sum of digits gives 48172782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48172783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81633 + ... + 82220.

It is an arithmetic number, because the mean of its divisors is an integer number (4669839).

Almost surely, 248172782 is an apocalyptic number.

48172782 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

48172782 is an abundant number, since it is smaller than the sum of its proper divisors (63903354).

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

48172782 is a wasteful number, since it uses less digits than its factorization.

48172782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163872 (or 163865 counting only the distinct ones).

The product of its digits is 50176, while the sum is 39.

The square root of 48172782 is about 6940.6614958518. The cubic root of 48172782 is about 363.8596599028.

The spelling of 48172782 in words is "forty-eight million, one hundred seventy-two thousand, seven hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 163853 327706 491559 983118 1146971 2293942 3440913 6881826 8028797 16057594 24086391 48172782