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49084240 = 2452921157
BaseRepresentation
bin1011101100111…
…1011101010000
310102100201220211
42323033131100
5100031143430
64512013504
71134131512
oct273173520
9112321824
1049084240
1125785797
1214531294
13a22763a
146739bb2
15449872a
hex2ecf750

49084240 has 40 divisors (see below), whose sum is σ = 118061640. Its totient is φ = 18955776.

The previous prime is 49084213. The next prime is 49084241. The reversal of 49084240 is 4248094.

It can be written as a sum of positive squares in 4 ways, for example, as 28224 + 49056016 = 168^2 + 7004^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49084241) 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, 8259 + ... + 12898.

It is an arithmetic number, because the mean of its divisors is an integer number (2951541).

Almost surely, 249084240 is an apocalyptic number.

49084240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49084240 is an abundant number, since it is smaller than the sum of its proper divisors (68977400).

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

49084240 is a wasteful number, since it uses less digits than its factorization.

49084240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21199 (or 21193 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 49084240 is about 7006.0145589343. The cubic root of 49084240 is about 366.1401515667.

The spelling of 49084240 in words is "forty-nine million, eighty-four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 1160 2320 21157 42314 84628 105785 169256 211570 338512 423140 613553 846280 1227106 1692560 2454212 3067765 4908424 6135530 9816848 12271060 24542120 49084240