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148875643231 = 721267949033
BaseRepresentation
bin1000101010100110101…
…1100000100101011111
3112020021101210021100021
42022221223200211133
54414344131040411
6152220441413011
713520164042120
oct2125153404537
9466241707307
10148875643231
1158157468287
1224a2a19a167
13110676512b3
1472c4312047
153d15036a71
hex22a9ae095f

148875643231 has 4 divisors (see below), whose sum is σ = 170143592272. Its totient is φ = 127607694192.

The previous prime is 148875643187. The next prime is 148875643247. The reversal of 148875643231 is 132346578841.

148875643231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 148875643231 - 213 = 148875635039 is a prime.

It is a super-2 number, since 2×1488756432312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148875643271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10633974510 + ... + 10633974523.

It is an arithmetic number, because the mean of its divisors is an integer number (42535898068).

Almost surely, 2148875643231 is an apocalyptic number.

148875643231 is a deficient number, since it is larger than the sum of its proper divisors (21267949041).

148875643231 is an equidigital number, since it uses as much as digits as its factorization.

148875643231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21267949040.

The product of its digits is 3870720, while the sum is 52.

The spelling of 148875643231 in words is "one hundred forty-eight billion, eight hundred seventy-five million, six hundred forty-three thousand, two hundred thirty-one".

Divisors: 1 7 21267949033 148875643231