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49989672 = 23322330187
BaseRepresentation
bin1011111010110…
…0100000101000
310111001201221100
42332230200220
5100244132142
64543241400
71144622325
oct276544050
9114051840
1049989672
1126243a87
12148a9260
13a4837b5
1468d3b4c
1545c6b4c
hex2fac828

49989672 has 48 divisors (see below), whose sum is σ = 141279840. Its totient is φ = 15938208.

The previous prime is 49989671. The next prime is 49989691. The reversal of 49989672 is 27698994.

49989672 is a `hidden beast` number, since 499 + 89 + 6 + 72 = 666.

It is not an unprimeable number, because it can be changed into a prime (49989671) 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, 13438 + ... + 16749.

It is an arithmetic number, because the mean of its divisors is an integer number (2943330).

Almost surely, 249989672 is an apocalyptic number.

It is an amenable number.

49989672 is an abundant number, since it is smaller than the sum of its proper divisors (91290168).

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

49989672 is a wasteful number, since it uses less digits than its factorization.

49989672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30222 (or 30215 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 49989672 is about 7070.3374742653. The cubic root of 49989672 is about 368.3777823324.

The spelling of 49989672 in words is "forty-nine million, nine hundred eighty-nine thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 23 24 36 46 69 72 92 138 184 207 276 414 552 828 1656 30187 60374 90561 120748 181122 241496 271683 362244 543366 694301 724488 1086732 1388602 2082903 2173464 2777204 4165806 5554408 6248709 8331612 12497418 16663224 24994836 49989672