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49728312 = 23323491979
BaseRepresentation
bin1011110110110…
…0101100111000
310110120110102100
42331230230320
5100212301222
64533503400
71142453334
oct275545470
9113513370
1049728312
1126085687
12147a1b60
13a3c184a
1468667c4
1545744ac
hex2f6cb38

49728312 has 48 divisors (see below), whose sum is σ = 135135000. Its totient is φ = 16520256.

The previous prime is 49728299. The next prime is 49728313. The reversal of 49728312 is 21382794.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49728313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24139 + ... + 26117.

Almost surely, 249728312 is an apocalyptic number.

It is an amenable number.

49728312 is an abundant number, since it is smaller than the sum of its proper divisors (85406688).

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

49728312 is a wasteful number, since it uses less digits than its factorization.

49728312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340 (or 2333 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 49728312 is about 7051.8304006832. The cubic root of 49728312 is about 367.7346661715.

The spelling of 49728312 in words is "forty-nine million, seven hundred twenty-eight thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 349 698 1047 1396 1979 2094 2792 3141 3958 4188 5937 6282 7916 8376 11874 12564 15832 17811 23748 25128 35622 47496 71244 142488 690671 1381342 2072013 2762684 4144026 5525368 6216039 8288052 12432078 16576104 24864156 49728312