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148142206889 = 1319166367537
BaseRepresentation
bin1000100111110111110…
…1101010111110101001
3112011101021200211211022
42021331331222332221
54411343401110024
6152020001342225
713463046660545
oct2117575527651
9464337624738
10148142206889
1157910460746
1224864637975
1310c7b705ab1
147254b52a25
153cc095c35e
hex227df6afa9

148142206889 has 8 divisors (see below), whose sum is σ = 148345866240. Its totient is φ = 147938688576.

The previous prime is 148142206829. The next prime is 148142206897. The reversal of 148142206889 is 988602241841.

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 148142206889 - 220 = 148141158313 is a prime.

It is a super-2 number, since 2×1481422068892 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148142206889.

It is not an unprimeable number, because it can be changed into a prime (148142206829) 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, 2159729 + ... + 2227265.

It is an arithmetic number, because the mean of its divisors is an integer number (18543233280).

Almost surely, 2148142206889 is an apocalyptic number.

It is an amenable number.

148142206889 is a deficient number, since it is larger than the sum of its proper divisors (203659351).

148142206889 is a wasteful number, since it uses less digits than its factorization.

148142206889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70519.

The product of its (nonzero) digits is 1769472, while the sum is 53.

The spelling of 148142206889 in words is "one hundred forty-eight billion, one hundred forty-two million, two hundred six thousand, eight hundred eighty-nine".

Divisors: 1 1319 1663 67537 2193497 89081303 112314031 148142206889