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48711391 = 891015419
BaseRepresentation
bin1011100111010…
…0011011011111
310101122210110121
42321310123133
544432231031
64500015411
71131016501
oct271643337
9111583417
1048711391
1125550653
1214391567
13a126a11
14667dd71
154423011
hex2e746df

48711391 has 8 divisors (see below), whose sum is σ = 49755600. Its totient is φ = 47678400.

The previous prime is 48711373. The next prime is 48711413. The reversal of 48711391 is 19311784.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 48711391 - 219 = 48187103 is a prime.

It is a super-2 number, since 2×487113912 = 4745599226309762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48711301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6280 + ... + 11698.

It is an arithmetic number, because the mean of its divisors is an integer number (6219450).

Almost surely, 248711391 is an apocalyptic number.

48711391 is a deficient number, since it is larger than the sum of its proper divisors (1044209).

48711391 is a wasteful number, since it uses less digits than its factorization.

48711391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5609.

The product of its digits is 6048, while the sum is 34.

The square root of 48711391 is about 6979.3546263247. The cubic root of 48711391 is about 365.2107146355.

It can be divided in two parts, 487113 and 91, that added together give a square (487204 = 6982).

The spelling of 48711391 in words is "forty-eight million, seven hundred eleven thousand, three hundred ninety-one".

Divisors: 1 89 101 5419 8989 482291 547319 48711391