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148235291 = 1771191643
BaseRepresentation
bin10001101010111…
…10010000011011
3101022221010120222
420311132100123
5300422012131
622413110255
73446656601
oct1065362033
9338833528
10148235291
1176747406
124178838b
13249318b9
1415989871
15d03187b
hex8d5e41b

148235291 has 16 divisors (see below), whose sum is σ = 160247808. Its totient is φ = 136617600.

The previous prime is 148235281. The next prime is 148235293. The reversal of 148235291 is 192532841.

148235291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 148235291 - 214 = 148218907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148235293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230216 + ... + 230858.

It is an arithmetic number, because the mean of its divisors is an integer number (10015488).

Almost surely, 2148235291 is an apocalyptic number.

148235291 is a deficient number, since it is larger than the sum of its proper divisors (12012517).

148235291 is a wasteful number, since it uses less digits than its factorization.

148235291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its digits is 17280, while the sum is 35.

The square root of 148235291 is about 12175.1916206686. The cubic root of 148235291 is about 529.2374116451.

The spelling of 148235291 in words is "one hundred forty-eight million, two hundred thirty-five thousand, two hundred ninety-one".

Divisors: 1 17 71 191 643 1207 3247 10931 13561 45653 122813 230537 776101 2087821 8719723 148235291