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148211165 = 529642233
BaseRepresentation
bin10001101010110…
…00010111011101
3101022212220111102
420311120113131
5300420224130
622412402445
73446526344
oct1065302735
9338786442
10148211165
1176730273
1241776425
132492391b
1415980b5b
15d029645
hex8d585dd

148211165 has 4 divisors (see below), whose sum is σ = 177853404. Its totient is φ = 118568928.

The previous prime is 148211143. The next prime is 148211179. The reversal of 148211165 is 561112841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561112841 = 1926729123.

It can be written as a sum of positive squares in 2 ways, for example, as 94906564 + 53304601 = 9742^2 + 7301^2 .

It is a cyclic number.

It is not a de Polignac number, because 148211165 - 26 = 148211101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14821112 + ... + 14821121.

It is an arithmetic number, because the mean of its divisors is an integer number (44463351).

Almost surely, 2148211165 is an apocalyptic number.

It is an amenable number.

148211165 is a deficient number, since it is larger than the sum of its proper divisors (29642239).

148211165 is an equidigital number, since it uses as much as digits as its factorization.

148211165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29642238.

The product of its digits is 1920, while the sum is 29.

The square root of 148211165 is about 12174.2007951241. The cubic root of 148211165 is about 529.2086981170.

The spelling of 148211165 in words is "one hundred forty-eight million, two hundred eleven thousand, one hundred sixty-five".

Divisors: 1 5 29642233 148211165