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148743798437 = 1397117957017
BaseRepresentation
bin1000101010000111010…
…0100011111010100101
3112012221012200212021202
42022201310203322211
54414111403022222
6152155411452245
713514003266013
oct2124164437245
9465835625252
10148743798437
1158099aa6343
12249b1bb7085
131104623ac20
1472b09d18b3
153d08691892
hex22a1d23ea5

148743798437 has 8 divisors (see below), whose sum is σ = 161837028696. Its totient is φ = 135886482432.

The previous prime is 148743798409. The next prime is 148743798461. The reversal of 148743798437 is 734897347841.

It can be written as a sum of positive squares in 4 ways, for example, as 2564510881 + 146179287556 = 50641^2 + 382334^2 .

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 148743798437 - 212 = 148743794341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148743798037) 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, 58977248 + ... + 58979769.

It is an arithmetic number, because the mean of its divisors is an integer number (20229628587).

Almost surely, 2148743798437 is an apocalyptic number.

It is an amenable number.

148743798437 is a deficient number, since it is larger than the sum of its proper divisors (13093230259).

148743798437 is a wasteful number, since it uses less digits than its factorization.

148743798437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117957127.

The product of its digits is 113799168, while the sum is 65.

The spelling of 148743798437 in words is "one hundred forty-eight billion, seven hundred forty-three million, seven hundred ninety-eight thousand, four hundred thirty-seven".

Divisors: 1 13 97 1261 117957017 1533441221 11441830649 148743798437