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948992149 = 7135570307
BaseRepresentation
bin111000100100000…
…111100010010101
32110010200210111101
4320210013202111
53420420222044
6234100110101
732342204650
oct7044074225
92403623441
10948992149
11447754936
12225995331
131217bb121
1490070897
15584a7cd4
hex38907895

948992149 has 4 divisors (see below), whose sum is σ = 1084562464. Its totient is φ = 813421836.

The previous prime is 948992141. The next prime is 948992159. The reversal of 948992149 is 941299849.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 948992149 - 23 = 948992141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 948992149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (948992141) 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 in 3 ways as a sum of consecutive naturals, for example, 67785147 + ... + 67785160.

It is an arithmetic number, because the mean of its divisors is an integer number (271140616).

Almost surely, 2948992149 is an apocalyptic number.

It is an amenable number.

948992149 is a deficient number, since it is larger than the sum of its proper divisors (135570315).

948992149 is a wasteful number, since it uses less digits than its factorization.

948992149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135570314.

The product of its digits is 1679616, while the sum is 55.

The square root of 948992149 is about 30805.7161741129. The cubic root of 948992149 is about 982.6998124733.

The spelling of 948992149 in words is "nine hundred forty-eight million, nine hundred ninety-two thousand, one hundred forty-nine".

Divisors: 1 7 135570307 948992149