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148659621979 = 1117337798333
BaseRepresentation
bin1000101001110011001…
…1011101000001011011
3112012201100022020220011
42022130303131001123
54413423330400404
6152143203342351
713511631636421
oct2123463350133
9465640266804
10148659621979
1158056532320
12249899819b7
131103197787b
1472a375d111
153d010b5604
hex229ccdd05b

148659621979 has 8 divisors (see below), whose sum is σ = 162267733872. Its totient is φ = 135067110240.

The previous prime is 148659621923. The next prime is 148659621983. The reversal of 148659621979 is 979126956841.

148659621979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 148659621979 - 217 = 148659490907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148659621379) 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 7 ways as a sum of consecutive naturals, for example, 3880104 + ... + 3918229.

It is an arithmetic number, because the mean of its divisors is an integer number (20283466734).

Almost surely, 2148659621979 is an apocalyptic number.

148659621979 is a deficient number, since it is larger than the sum of its proper divisors (13608111893).

148659621979 is a wasteful number, since it uses less digits than its factorization.

148659621979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7800077.

The product of its digits is 58786560, while the sum is 67.

The spelling of 148659621979 in words is "one hundred forty-eight billion, six hundred fifty-nine million, six hundred twenty-one thousand, nine hundred seventy-nine".

Divisors: 1 11 1733 19063 7798333 85781663 13514511089 148659621979