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49053520 = 245613169
BaseRepresentation
bin1011101100011…
…1111101010000
310102022011210001
42323013331100
5100024203040
64511215344
71133643115
oct273077520
9112264701
1049053520
11257646aa
1214517554
13a216669
14672c90c
15448e59a
hex2ec7f50

49053520 has 20 divisors (see below), whose sum is σ = 114049620. Its totient is φ = 19621376.

The previous prime is 49053493. The next prime is 49053523. The reversal of 49053520 is 2535094.

It can be written as a sum of positive squares in 2 ways, for example, as 33085504 + 15968016 = 5752^2 + 3996^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49053523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306505 + ... + 306664.

It is an arithmetic number, because the mean of its divisors is an integer number (5702481).

Almost surely, 249053520 is an apocalyptic number.

49053520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49053520 is an abundant number, since it is smaller than the sum of its proper divisors (64996100).

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

49053520 is a wasteful number, since it uses less digits than its factorization.

49053520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613182 (or 613176 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 49053520 is about 7003.8218138385. The cubic root of 49053520 is about 366.0637511254.

The spelling of 49053520 in words is "forty-nine million, fifty-three thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 613169 1226338 2452676 3065845 4905352 6131690 9810704 12263380 24526760 49053520