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148346456749 = 421735178197
BaseRepresentation
bin1000101000101000100…
…0110100101010101101
3112011220112000210221221
42022022020310222231
54412303143103444
6152052135223341
713501110035311
oct2121210645255
9464815023857
10148346456749
1157a05786687
1224900b17b51
1310cb1b1a5ba
147273d1db41
153cd3855a84
hex228a234aad

148346456749 has 4 divisors (see below), whose sum is σ = 148381639164. Its totient is φ = 148311274336.

The previous prime is 148346456743. The next prime is 148346456759. The reversal of 148346456749 is 947654643841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 947654643841 = 3126733030817.

It can be written as a sum of positive squares in 2 ways, for example, as 94252070025 + 54094386724 = 307005^2 + 232582^2 .

It is a cyclic number.

It is not a de Polignac number, because 148346456749 - 213 = 148346448557 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 (148346456743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17584882 + ... + 17593315.

It is an arithmetic number, because the mean of its divisors is an integer number (37095409791).

Almost surely, 2148346456749 is an apocalyptic number.

It is an amenable number.

148346456749 is a deficient number, since it is larger than the sum of its proper divisors (35182415).

148346456749 is an equidigital number, since it uses as much as digits as its factorization.

148346456749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35182414.

The product of its digits is 69672960, while the sum is 61.

The spelling of 148346456749 in words is "one hundred forty-eight billion, three hundred forty-six million, four hundred fifty-six thousand, seven hundred forty-nine".

Divisors: 1 4217 35178197 148346456749