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48771557 is a prime number
BaseRepresentation
bin1011101000001…
…1000111100101
310101202211222222
42322003013211
544441142212
64501202125
71131360062
oct272030745
9111684888
1048771557
112559187a
1214400345
13a148213
146697c69
154435c72
hex2e831e5

48771557 has 2 divisors, whose sum is σ = 48771558. Its totient is φ = 48771556.

The previous prime is 48771553. The next prime is 48771577. The reversal of 48771557 is 75517784.

48771557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31013761 + 17757796 = 5569^2 + 4214^2 .

It is a cyclic number.

It is not a de Polignac number, because 48771557 - 22 = 48771553 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48771551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24385778 + 24385779.

It is an arithmetic number, because the mean of its divisors is an integer number (24385779).

Almost surely, 248771557 is an apocalyptic number.

It is an amenable number.

48771557 is a deficient number, since it is larger than the sum of its proper divisors (1).

48771557 is an equidigital number, since it uses as much as digits as its factorization.

48771557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 274400, while the sum is 44.

The square root of 48771557 is about 6983.6635800989. The cubic root of 48771557 is about 365.3610164220.

The spelling of 48771557 in words is "forty-eight million, seven hundred seventy-one thousand, five hundred fifty-seven".