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48952991 = 471041553
BaseRepresentation
bin1011101010111…
…1011010011111
310102010001212202
42322233122133
5100012443431
64505122115
71133044043
oct272573237
9112101782
1048952991
11256a611a
121448933b
13a1ac989
146704023
15446e8cb
hex2eaf69f

48952991 has 4 divisors (see below), whose sum is σ = 49994592. Its totient is φ = 47911392.

The previous prime is 48952909. The next prime is 48953011. The reversal of 48952991 is 19925984.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48952991 - 210 = 48951967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 1041553 = 48952991 / (4 + 8 + 9 + 5 + 2 + 9 + 9 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48952691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520730 + ... + 520823.

It is an arithmetic number, because the mean of its divisors is an integer number (12498648).

Almost surely, 248952991 is an apocalyptic number.

48952991 is a deficient number, since it is larger than the sum of its proper divisors (1041601).

48952991 is a wasteful number, since it uses less digits than its factorization.

48952991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041600.

The product of its digits is 233280, while the sum is 47.

The square root of 48952991 is about 6996.6414085617. The cubic root of 48952991 is about 365.8135129467.

The spelling of 48952991 in words is "forty-eight million, nine hundred fifty-two thousand, nine hundred ninety-one".

Divisors: 1 47 1041553 48952991