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49475980 = 2252938443
BaseRepresentation
bin1011110010111…
…1000110001100
310110002122021201
42330233012030
5100131212410
64524235244
71140352561
oct274570614
9113078251
1049475980
1125a23044
121469bb24
13a333a38
1467dc868
15452483a
hex2f2f18c

49475980 has 24 divisors (see below), whose sum is σ = 104266512. Its totient is φ = 19720512.

The previous prime is 49475957. The next prime is 49475983. The reversal of 49475980 is 8957494.

It is a super-3 number, since 3×494759803 (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49475980.

It is not an unprimeable number, because it can be changed into a prime (49475983) 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, 1639 + ... + 10081.

It is an arithmetic number, because the mean of its divisors is an integer number (4344438).

Almost surely, 249475980 is an apocalyptic number.

It is an amenable number.

49475980 is an abundant number, since it is smaller than the sum of its proper divisors (54790532).

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

49475980 is a wasteful number, since it uses less digits than its factorization.

49475980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8745 (or 8743 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 49475980 is about 7033.9164055311. The cubic root of 49475980 is about 367.1116232714. Note that the first 3 decimals are identical.

The spelling of 49475980 in words is "forty-nine million, four hundred seventy-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 293 586 1172 1465 2930 5860 8443 16886 33772 42215 84430 168860 2473799 4947598 9895196 12368995 24737990 49475980