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48861261 = 3213613989
BaseRepresentation
bin1011101001100…
…1000001001101
310101221102001100
42322121001031
5100002030021
64503133313
71132212441
oct272310115
9111842040
1048861261
1125643209
1214444239
13a179cb7
1466bc821
154452626
hex2e9904d

48861261 has 12 divisors (see below), whose sum is σ = 70646940. Its totient is φ = 32542080.

The previous prime is 48861251. The next prime is 48861271. The reversal of 48861261 is 16216884.

It is an interprime number because it is at equal distance from previous prime (48861251) and next prime (48861271).

It can be written as a sum of positive squares in 2 ways, for example, as 15163236 + 33698025 = 3894^2 + 5805^2 .

It is not a de Polignac number, because 48861261 - 27 = 48861133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48861221) 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, 10255 + ... + 14243.

It is an arithmetic number, because the mean of its divisors is an integer number (5887245).

Almost surely, 248861261 is an apocalyptic number.

It is an amenable number.

48861261 is a deficient number, since it is larger than the sum of its proper divisors (21785679).

48861261 is a wasteful number, since it uses less digits than its factorization.

48861261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356 (or 5353 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 48861261 is about 6990.0830467170. The cubic root of 48861261 is about 365.5848782623.

The spelling of 48861261 in words is "forty-eight million, eight hundred sixty-one thousand, two hundred sixty-one".

Divisors: 1 3 9 1361 3989 4083 11967 12249 35901 5429029 16287087 48861261