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148901 = 612441
BaseRepresentation
bin100100010110100101
321120020212
4210112211
514231101
63105205
71160054
oct442645
9246225
10148901
11a1965
1272205
1352a0c
143c39b
152e1bb
hex245a5

148901 has 4 divisors (see below), whose sum is σ = 151404. Its totient is φ = 146400.

The previous prime is 148891. The next prime is 148913. The reversal of 148901 is 109841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9025 + 139876 = 95^2 + 374^2 .

It is a de Polignac number, because none of the positive numbers 2k-148901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 148901.

It is not an unprimeable number, because it can be changed into a prime (148921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160 + ... + 1281.

It is an arithmetic number, because the mean of its divisors is an integer number (37851).

2148901 is an apocalyptic number.

It is an amenable number.

148901 is a deficient number, since it is larger than the sum of its proper divisors (2503).

148901 is an equidigital number, since it uses as much as digits as its factorization.

148901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 148901 is about 385.8769233836. The cubic root of 148901 is about 53.0028478356.

Subtracting from 148901 its reverse (109841), we obtain a triangular number (39060 = T279).

The spelling of 148901 in words is "one hundred forty-eight thousand, nine hundred one".

Divisors: 1 61 2441 148901