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48781089 = 337258101
BaseRepresentation
bin1011101000010…
…1011100100001
310101210100002000
42322011130201
544441443324
64501314213
71131426630
oct272053441
9111710060
1048781089
1125598a55
1214405969
13a14c666
14669b517
1544389c9
hex2e85721

48781089 has 16 divisors (see below), whose sum is σ = 82592640. Its totient is φ = 27874800.

The previous prime is 48781067. The next prime is 48781099. The reversal of 48781089 is 98018784.

It is not a de Polignac number, because 48781089 - 211 = 48779041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48781039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128862 + ... + 129239.

It is an arithmetic number, because the mean of its divisors is an integer number (5162040).

Almost surely, 248781089 is an apocalyptic number.

It is an amenable number.

48781089 is a deficient number, since it is larger than the sum of its proper divisors (33811551).

48781089 is a wasteful number, since it uses less digits than its factorization.

48781089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258117 (or 258111 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 48781089 is about 6984.3459965841. The cubic root of 48781089 is about 365.3848171409.

The spelling of 48781089 in words is "forty-eight million, seven hundred eighty-one thousand, eighty-nine".

Divisors: 1 3 7 9 21 27 63 189 258101 774303 1806707 2322909 5420121 6968727 16260363 48781089