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49880556 = 2233113347
BaseRepresentation
bin1011111001000…
…1110111101100
310110212012021000
42332101313230
5100232134211
64541040300
71143656235
oct276216754
9113765230
1049880556
112617a000
1214856090
13a445c2b
1468a608c
1545a4656
hex2f91dec

49880556 has 96 divisors (see below), whose sum is σ = 142652160. Its totient is φ = 15071760.

The previous prime is 49880549. The next prime is 49880557. The reversal of 49880556 is 65508894.

49880556 is a `hidden beast` number, since 4 + 98 + 8 + 0 + 556 = 666.

It is not an unprimeable number, because it can be changed into a prime (49880557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143575 + ... + 143921.

It is an arithmetic number, because the mean of its divisors is an integer number (1485960).

Almost surely, 249880556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49880556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71326080).

49880556 is an abundant number, since it is smaller than the sum of its proper divisors (92771604).

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

49880556 is a wasteful number, since it uses less digits than its factorization.

49880556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 49880556 is about 7062.6167954944. The cubic root of 49880556 is about 368.1095589831.

It can be divided in two parts, 4988055 and 6, that added together give a triangular number (4988061 = T3158).

The spelling of 49880556 in words is "forty-nine million, eight hundred eighty thousand, five hundred fifty-six".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 121 132 198 242 297 347 363 396 484 594 694 726 1041 1089 1188 1331 1388 1452 2082 2178 2662 3123 3267 3817 3993 4164 4356 5324 6246 6534 7634 7986 9369 11451 11979 12492 13068 15268 15972 18738 22902 23958 34353 35937 37476 41987 45804 47916 68706 71874 83974 103059 125961 137412 143748 167948 206118 251922 377883 412236 461857 503844 755766 923714 1133649 1385571 1511532 1847428 2267298 2771142 4156713 4534596 5542284 8313426 12470139 16626852 24940278 49880556