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148086842 = 274043421
BaseRepresentation
bin10001101001110…
…10000000111010
3101022122120221212
420310322000322
5300402234332
622410003122
73445501031
oct1064720072
9338576855
10148086842
1176655922
12417164a2
13248ac167
141594b718
15d0028b2
hex8d3a03a

148086842 has 4 divisors (see below), whose sum is σ = 222130266. Its totient is φ = 74043420.

The previous prime is 148086791. The next prime is 148086863. The reversal of 148086842 is 248680841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248680841 = 1242120021.

It can be written as a sum of positive squares in only one way, i.e., 133425601 + 14661241 = 11551^2 + 3829^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 148086842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37021709 + ... + 37021712.

Almost surely, 2148086842 is an apocalyptic number.

148086842 is a deficient number, since it is larger than the sum of its proper divisors (74043424).

148086842 is an equidigital number, since it uses as much as digits as its factorization.

148086842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74043423.

The product of its (nonzero) digits is 98304, while the sum is 41.

The square root of 148086842 is about 12169.0937213911. The cubic root of 148086842 is about 529.0606858361.

The spelling of 148086842 in words is "one hundred forty-eight million, eighty-six thousand, eight hundred forty-two".

Divisors: 1 2 74043421 148086842