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48971188 = 2272249853
BaseRepresentation
bin1011101011001…
…1110110110100
310102010222211201
42322303312310
5100014034223
64505342244
71133151100
oct272636664
9112128751
1048971188
1125708862
1214497984
13a1b8046
14670a900
154474ead
hex2eb3db4

48971188 has 18 divisors (see below), whose sum is σ = 99691746. Its totient is φ = 20987568.

The previous prime is 48971183. The next prime is 48971191. The reversal of 48971188 is 88117984.

It can be written as a sum of positive squares in only one way, i.e., 48608784 + 362404 = 6972^2 + 602^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48971183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124731 + ... + 125122.

Almost surely, 248971188 is an apocalyptic number.

It is an amenable number.

48971188 is an abundant number, since it is smaller than the sum of its proper divisors (50720558).

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

48971188 is a wasteful number, since it uses less digits than its factorization.

48971188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249871 (or 249862 counting only the distinct ones).

The product of its digits is 129024, while the sum is 46.

The square root of 48971188 is about 6997.9416973850. The cubic root of 48971188 is about 365.8588345482.

The spelling of 48971188 in words is "forty-eight million, nine hundred seventy-one thousand, one hundred eighty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 249853 499706 999412 1748971 3497942 6995884 12242797 24485594 48971188