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49709044 = 22711251643
BaseRepresentation
bin1011110110011…
…1111111110100
310110112110222201
42331213333310
5100211142134
64533234244
71142343220
oct275477764
9113473881
1049709044
1126072160
1214792984
13a3b5b48
14685d780
15456d914
hex2f67ff4

49709044 has 48 divisors (see below), whose sum is σ = 109057536. Its totient is φ = 19260000.

The previous prime is 49709021. The next prime is 49709047. The reversal of 49709044 is 44090794.

It is a junction number, because it is equal to n+sod(n) for n = 49708994 and 49709012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49709047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76987 + ... + 77629.

It is an arithmetic number, because the mean of its divisors is an integer number (2272032).

Almost surely, 249709044 is an apocalyptic number.

49709044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49709044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54528768).

49709044 is an abundant number, since it is smaller than the sum of its proper divisors (59348492).

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

49709044 is a wasteful number, since it uses less digits than its factorization.

49709044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 49709044 is about 7050.4640981995. The cubic root of 49709044 is about 367.6871652169.

The spelling of 49709044 in words is "forty-nine million, seven hundred nine thousand, forty-four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 251 308 502 643 1004 1286 1757 2572 2761 3514 4501 5522 7028 7073 9002 11044 14146 18004 19327 28292 38654 49511 77308 99022 161393 198044 322786 645572 1129751 1775323 2259502 3550646 4519004 7101292 12427261 24854522 49709044