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148812420 = 22352480207
BaseRepresentation
bin10001101111010…
…11001010000100
3101101000110021010
420313223022010
5301043444140
622433322220
73454612311
oct1067531204
9341013233
10148812420
1177000a79
1241a06370
1324aa44b3
1415a99d08
15d0e7880
hex8deb284

148812420 has 24 divisors (see below), whose sum is σ = 416674944. Its totient is φ = 39683296.

The previous prime is 148812413. The next prime is 148812451. The reversal of 148812420 is 24218841.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1240044 + ... + 1240163.

It is an arithmetic number, because the mean of its divisors is an integer number (17361456).

Almost surely, 2148812420 is an apocalyptic number.

148812420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148812420 is an abundant number, since it is smaller than the sum of its proper divisors (267862524).

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

148812420 is a wasteful number, since it uses less digits than its factorization.

148812420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480219 (or 2480217 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 148812420 is about 12198.8696197640. The cubic root of 148812420 is about 529.9233542897.

The spelling of 148812420 in words is "one hundred forty-eight million, eight hundred twelve thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2480207 4960414 7440621 9920828 12401035 14881242 24802070 29762484 37203105 49604140 74406210 148812420