Search a number
-
+
148979925 = 33521712983
BaseRepresentation
bin10001110000101…
…00000011010101
3101101022222001000
420320110003111
5301114324200
622441053513
73456210543
oct1070240325
9341288030
10148979925
1177105906
1241a87299
1324b32803
1415b00d93
15d12c300
hex8e140d5

148979925 has 48 divisors (see below), whose sum is σ = 289802880. Its totient is φ = 74776320.

The previous prime is 148979917. The next prime is 148979951. The reversal of 148979925 is 529979841.

148979925 is a `hidden beast` number, since 1 + 489 + 79 + 92 + 5 = 666.

It is not a de Polignac number, because 148979925 - 23 = 148979917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4984 + ... + 17966.

It is an arithmetic number, because the mean of its divisors is an integer number (6037560).

Almost surely, 2148979925 is an apocalyptic number.

148979925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148979925 is a deficient number, since it is larger than the sum of its proper divisors (140822955).

148979925 is a wasteful number, since it uses less digits than its factorization.

148979925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13019 (or 13008 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 148979925 is about 12205.7332839940. The cubic root of 148979925 is about 530.1221090427.

The spelling of 148979925 in words is "one hundred forty-eight million, nine hundred seventy-nine thousand, nine hundred twenty-five".

Divisors: 1 3 5 9 15 17 25 27 45 51 75 85 135 153 225 255 425 459 675 765 1275 2295 3825 11475 12983 38949 64915 116847 194745 220711 324575 350541 584235 662133 973725 1103555 1752705 1986399 2921175 3310665 5517775 5959197 8763525 9931995 16553325 29795985 49659975 148979925