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48878557 = 713537127
BaseRepresentation
bin1011101001110…
…1001111011101
310101222021202221
42322131033131
5100003103212
64503345341
71132314040
oct272351735
9111867687
1048878557
1125655202
1214452251
13a184b30
1466c4c57
154457807
hex2e9d3dd

48878557 has 8 divisors (see below), whose sum is σ = 60158336. Its totient is φ = 38673072.

The previous prime is 48878503. The next prime is 48878567. The reversal of 48878557 is 75587884.

It is a happy number.

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 48878557 - 219 = 48354269 is a prime.

It is a super-2 number, since 2×488785572 = 4778226668804498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48878567) 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, 268473 + ... + 268654.

It is an arithmetic number, because the mean of its divisors is an integer number (7519792).

Almost surely, 248878557 is an apocalyptic number.

It is an amenable number.

48878557 is a deficient number, since it is larger than the sum of its proper divisors (11279779).

48878557 is a wasteful number, since it uses less digits than its factorization.

48878557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537147.

The product of its digits is 2508800, while the sum is 52.

The square root of 48878557 is about 6991.3201185470. The cubic root of 48878557 is about 365.6280099784.

The spelling of 48878557 in words is "forty-eight million, eight hundred seventy-eight thousand, five hundred fifty-seven".

Divisors: 1 7 13 91 537127 3759889 6982651 48878557