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148971865137 = 3431171151687
BaseRepresentation
bin1000101010111101101…
…0100100010000110001
3112020112002211211222120
42022233122210100301
54420043244141022
6152234200024453
713522442650344
oct2125732442061
9466462754876
10148971865137
11581a6809217
1224a56462129
1311081571234
1472d2ddc45b
153d1d6e1d5c
hex22af6a4431

148971865137 has 8 divisors (see below), whose sum is σ = 198633932736. Its totient is φ = 99312187152.

The previous prime is 148971865129. The next prime is 148971865193. The reversal of 148971865137 is 731568179841.

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

It is not a de Polignac number, because 148971865137 - 23 = 148971865129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148971865127) 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 7 ways as a sum of consecutive naturals, for example, 446493 + ... + 705194.

It is an arithmetic number, because the mean of its divisors is an integer number (24829241592).

Almost surely, 2148971865137 is an apocalyptic number.

It is an amenable number.

148971865137 is a deficient number, since it is larger than the sum of its proper divisors (49662067599).

148971865137 is a wasteful number, since it uses less digits than its factorization.

148971865137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194807.

The product of its digits is 10160640, while the sum is 60.

The spelling of 148971865137 in words is "one hundred forty-eight billion, nine hundred seventy-one million, eight hundred sixty-five thousand, one hundred thirty-seven".

Divisors: 1 3 43117 129351 1151687 3455061 49657288379 148971865137