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148668607231 = 413956991639
BaseRepresentation
bin1000101001110101010…
…1101110101011111111
3112012201222012202100021
42022131111232223333
54413433130412411
6152144124113011
713512101211454
oct2123525565377
9465658182307
10148668607231
115806060a051
1224990995767
13110337a25a1
1472a4a1b82b
153d01c8ca71
hex229d56eaff

148668607231 has 8 divisors (see below), whose sum is σ = 152300181600. Its totient is φ = 145037295360.

The previous prime is 148668607229. The next prime is 148668607249. The reversal of 148668607231 is 132706866841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 148668607231 - 21 = 148668607229 is a prime.

It is a super-2 number, since 2×1486686072312 (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 (148668607211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576510 + ... + 1668148.

It is an arithmetic number, because the mean of its divisors is an integer number (19037522700).

Almost surely, 2148668607231 is an apocalyptic number.

148668607231 is a deficient number, since it is larger than the sum of its proper divisors (3631574369).

148668607231 is an equidigital number, since it uses as much as digits as its factorization.

148668607231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131249.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 148668607231 in words is "one hundred forty-eight billion, six hundred sixty-eight million, six hundred seven thousand, two hundred thirty-one".

Divisors: 1 41 39569 91639 1622329 3757199 3626063591 148668607231