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148443243 = 3131392197
BaseRepresentation
bin10001101100100…
…01000001101011
3101100022200211220
420312101001223
5301000140433
622421353123
73451514064
oct1066210153
9340280756
10148443243
1176879673
12418687a3
13249a5450
1415a0156b
15d0732b3
hex8d9106b

148443243 has 24 divisors (see below), whose sum is σ = 215783568. Its totient is φ = 90232128.

The previous prime is 148443209. The next prime is 148443277. The reversal of 148443243 is 342344841.

It is an interprime number because it is at equal distance from previous prime (148443209) and next prime (148443277).

It is a de Polignac number, because none of the positive numbers 2k-148443243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148443293) 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, 753421 + ... + 753617.

It is an arithmetic number, because the mean of its divisors is an integer number (8990982).

Almost surely, 2148443243 is an apocalyptic number.

148443243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

148443243 is a deficient number, since it is larger than the sum of its proper divisors (67340325).

148443243 is a wasteful number, since it uses less digits than its factorization.

148443243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 352 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

The square root of 148443243 is about 12183.7286164786. The cubic root of 148443243 is about 529.4847763887.

The spelling of 148443243 in words is "one hundred forty-eight million, four hundred forty-three thousand, two hundred forty-three".

Divisors: 1 3 13 39 139 197 417 591 1807 2561 5421 7683 19321 27383 57963 82149 251173 355979 753519 1067937 3806237 11418711 49481081 148443243