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148979992 = 237354293
BaseRepresentation
bin10001110000101…
…00000100011000
3101101022222010111
420320110010120
5301114324432
622441054104
73456211000
oct1070240430
9341288114
10148979992
1177105967
1241a87334
1324b32855
1415b01000
15d12c347
hex8e14118

148979992 has 32 divisors (see below), whose sum is σ = 325764000. Its totient is φ = 63847392.

The previous prime is 148979977. The next prime is 148980011. The reversal of 148979992 is 299979841.

It is a super-3 number, since 3×1489799923 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24403 + ... + 29890.

It is an arithmetic number, because the mean of its divisors is an integer number (10180125).

Almost surely, 2148979992 is an apocalyptic number.

It is an amenable number.

148979992 is an abundant number, since it is smaller than the sum of its proper divisors (176784008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148979992 is an equidigital number, since it uses as much as digits as its factorization.

148979992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54320 (or 54302 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 58.

The square root of 148979992 is about 12205.7360286056. The cubic root of 148979992 is about 530.1221885124.

The spelling of 148979992 in words is "one hundred forty-eight million, nine hundred seventy-nine thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 343 392 686 1372 2744 54293 108586 217172 380051 434344 760102 1520204 2660357 3040408 5320714 10641428 18622499 21282856 37244998 74489996 148979992