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148147872 = 2531543207
BaseRepresentation
bin10001101010010…
…00111010100000
3101022202200200020
420311020322200
5300411212442
622411153440
73446143665
oct1065107240
9338680606
10148147872
1176697764
1241745880
1324900b82
1415965a6c
15d0159ec
hex8d48ea0

148147872 has 24 divisors (see below), whose sum is σ = 388888416. Its totient is φ = 49382592.

The previous prime is 148147837. The next prime is 148147873. The reversal of 148147872 is 278741841.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (148147873) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 771508 + ... + 771699.

It is an arithmetic number, because the mean of its divisors is an integer number (16203684).

Almost surely, 2148147872 is an apocalyptic number.

148147872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

148147872 is an abundant number, since it is smaller than the sum of its proper divisors (240740544).

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

148147872 is a wasteful number, since it uses less digits than its factorization.

148147872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543220 (or 1543212 counting only the distinct ones).

The product of its digits is 100352, while the sum is 42.

The square root of 148147872 is about 12171.6010450557. The cubic root of 148147872 is about 529.1333552208.

The spelling of 148147872 in words is "one hundred forty-eight million, one hundred forty-seven thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1543207 3086414 4629621 6172828 9259242 12345656 18518484 24691312 37036968 49382624 74073936 148147872