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49288280 = 2351964853
BaseRepresentation
bin1011110000000…
…1010001011000
310102202002210212
42330001101120
5100104211110
64520230252
71135641416
oct274012130
9112662725
1049288280
1125905018
121460b388
13a299482
1467902b6
1544d8e05
hex2f01458

49288280 has 32 divisors (see below), whose sum is σ = 116737200. Its totient is φ = 18677376.

The previous prime is 49288279. The next prime is 49288307. The reversal of 49288280 is 8288294.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31667 + ... + 33186.

Almost surely, 249288280 is an apocalyptic number.

49288280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49288280 is an abundant number, since it is smaller than the sum of its proper divisors (67448920).

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

49288280 is a wasteful number, since it uses less digits than its factorization.

49288280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64883 (or 64879 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 49288280 is about 7020.5612311268. The cubic root of 49288280 is about 366.6467904745.

The spelling of 49288280 in words is "forty-nine million, two hundred eighty-eight thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 64853 129706 259412 324265 518824 648530 1232207 1297060 2464414 2594120 4928828 6161035 9857656 12322070 24644140 49288280