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47980149 = 371926329
BaseRepresentation
bin1011011100000…
…1111001110101
310100021122101120
42313001321311
544240331044
64432214153
71121552550
oct267017165
9110248346
1047980149
11250a1218
121409a359
139c2bc29
14652d697
15432b519
hex2dc1e75

47980149 has 24 divisors (see below), whose sum is σ = 77175360. Its totient is φ = 25970112.

The previous prime is 47980133. The next prime is 47980183. The reversal of 47980149 is 94108974.

It is not a de Polignac number, because 47980149 - 24 = 47980133 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47980149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47980129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4417 + ... + 10745.

It is an arithmetic number, because the mean of its divisors is an integer number (3215640).

Almost surely, 247980149 is an apocalyptic number.

It is an amenable number.

47980149 is a deficient number, since it is larger than the sum of its proper divisors (29195211).

47980149 is a wasteful number, since it uses less digits than its factorization.

47980149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6377 (or 6358 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 47980149 is about 6926.7704596009. The cubic root of 47980149 is about 363.3740121294.

The spelling of 47980149 in words is "forty-seven million, nine hundred eighty thousand, one hundred forty-nine".

Divisors: 1 3 7 19 21 57 133 361 399 1083 2527 6329 7581 18987 44303 120251 132909 360753 841757 2284769 2525271 6854307 15993383 47980149