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48189971 = 4310311087
BaseRepresentation
bin1011011111010…
…1001000010011
310100200022012202
42313311020103
544314034341
64440513415
71123415354
oct267651023
9110608182
1048189971
1125224925
121417b86b
139ca359b
146585d2b
15436d79b
hex2df5213

48189971 has 8 divisors (see below), whose sum is σ = 49403904. Its totient is φ = 46980360.

The previous prime is 48189949. The next prime is 48189979. The reversal of 48189971 is 17998184.

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 48189971 - 26 = 48189907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48189979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43790 + ... + 44876.

It is an arithmetic number, because the mean of its divisors is an integer number (6175488).

Almost surely, 248189971 is an apocalyptic number.

48189971 is a deficient number, since it is larger than the sum of its proper divisors (1213933).

48189971 is a wasteful number, since it uses less digits than its factorization.

48189971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161.

The product of its digits is 145152, while the sum is 47.

The square root of 48189971 is about 6941.8996679583. The cubic root of 48189971 is about 363.9029321940.

The spelling of 48189971 in words is "forty-eight million, one hundred eighty-nine thousand, nine hundred seventy-one".

Divisors: 1 43 1031 1087 44333 46741 1120697 48189971