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49392805 = 57112107109
BaseRepresentation
bin1011110001101…
…0110010100101
310102221102012011
42330122302211
5100121032210
64522354221
71136555230
oct274326245
9112842164
1049392805
1125976600
121465b971
13a304c17
1467ba417
154509d8a
hex2f1aca5

49392805 has 48 divisors (see below), whose sum is σ = 75841920. Its totient is φ = 30222720.

The previous prime is 49392793. The next prime is 49392809. The reversal of 49392805 is 50829394.

It is a happy number.

It is not a de Polignac number, because 49392805 - 25 = 49392773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49392809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 453091 + ... + 453199.

It is an arithmetic number, because the mean of its divisors is an integer number (1580040).

Almost surely, 249392805 is an apocalyptic number.

It is an amenable number.

49392805 is a deficient number, since it is larger than the sum of its proper divisors (26449115).

49392805 is a wasteful number, since it uses less digits than its factorization.

49392805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 49392805 is about 7028.0014940237. The cubic root of 49392805 is about 366.9057884672.

It can be divided in two parts, 4939 and 2805, that added together give a square (7744 = 882).

The spelling of 49392805 in words is "forty-nine million, three hundred ninety-two thousand, eight hundred five".

Divisors: 1 5 7 11 35 55 77 107 109 121 385 535 545 605 749 763 847 1177 1199 3745 3815 4235 5885 5995 8239 8393 11663 12947 13189 41195 41965 58315 64735 65945 81641 90629 92323 128293 408205 453145 461615 641465 898051 1411223 4490255 7056115 9878561 49392805