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148865708331 = 344342740657
BaseRepresentation
bin1000101010100100010…
…1100111000100101011
3112020020201002112020000
42022221011213010223
54414334110131311
6152215444434043
713520013433314
oct2125105470453
9466221075200
10148865708331
11581518a201a
1224a269a8923
1311065583262
1472c2c8760b
153d14223056
hex22a916712b

148865708331 has 20 divisors (see below), whose sum is σ = 227551263192. Its totient is φ = 96935807808.

The previous prime is 148865708293. The next prime is 148865708353. The reversal of 148865708331 is 133807568841.

It is a happy number.

148865708331 is a `hidden beast` number, since 1 + 488 + 6 + 57 + 0 + 83 + 31 = 666.

It is not a de Polignac number, because 148865708331 - 221 = 148863611179 is a prime.

It is a super-2 number, since 2×1488657083312 (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (148865708531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21366846 + ... + 21373811.

Almost surely, 2148865708331 is an apocalyptic number.

148865708331 is a deficient number, since it is larger than the sum of its proper divisors (78685554861).

148865708331 is an equidigital number, since it uses as much as digits as its factorization.

148865708331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42740712 (or 42740703 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 148865708331 in words is "one hundred forty-eight billion, eight hundred sixty-five million, seven hundred eight thousand, three hundred thirty-one".

Divisors: 1 3 9 27 43 81 129 387 1161 3483 42740657 128221971 384665913 1153997739 1837848251 3461993217 5513544753 16540634259 49621902777 148865708331