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148397193 = 32713117981
BaseRepresentation
bin10001101100001…
…01110010001001
3101100020100200100
420312011302021
5300442202233
622420400013
73451232610
oct1066056211
9340210610
10148397193
117684800a
1241846009
132498a4b9
14159cc877
15d064813
hex8d85c89

148397193 has 24 divisors (see below), whose sum is σ = 246856896. Its totient is φ = 84146400.

The previous prime is 148397159. The next prime is 148397231. The reversal of 148397193 is 391793841.

It is not a de Polignac number, because 148397193 - 216 = 148331657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148397113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 738 + ... + 17243.

It is an arithmetic number, because the mean of its divisors is an integer number (10285704).

Almost surely, 2148397193 is an apocalyptic number.

It is an amenable number.

148397193 is a deficient number, since it is larger than the sum of its proper divisors (98459703).

148397193 is a wasteful number, since it uses less digits than its factorization.

148397193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18125 (or 18122 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 148397193 is about 12181.8386543247. The cubic root of 148397193 is about 529.4300185449.

The spelling of 148397193 in words is "one hundred forty-eight million, three hundred ninety-seven thousand, one hundred ninety-three".

Divisors: 1 3 7 9 21 63 131 393 917 1179 2751 8253 17981 53943 125867 161829 377601 1132803 2355511 7066533 16488577 21199599 49465731 148397193