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148012149761 = 721144592823
BaseRepresentation
bin1000100111011000110…
…1100010110000000001
3112011001012222020222122
42021312031202300001
54411112102243021
6151555034014025
713456610341340
oct2116615426001
9464035866878
10148012149761
1157853aaa913
1224828b77315
1310c5a79a308
147241779b57
153cb431bbab
hex2276362c01

148012149761 has 4 divisors (see below), whose sum is σ = 169156742592. Its totient is φ = 126867556932.

The previous prime is 148012149739. The next prime is 148012149767. The reversal of 148012149761 is 167941210841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 167941210841 = 1585191059439.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-148012149761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148012149767) 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, 10572296405 + ... + 10572296418.

It is an arithmetic number, because the mean of its divisors is an integer number (42289185648).

Almost surely, 2148012149761 is an apocalyptic number.

It is an amenable number.

148012149761 is a deficient number, since it is larger than the sum of its proper divisors (21144592831).

148012149761 is an equidigital number, since it uses as much as digits as its factorization.

148012149761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21144592830.

The product of its (nonzero) digits is 96768, while the sum is 44.

The spelling of 148012149761 in words is "one hundred forty-eight billion, twelve million, one hundred forty-nine thousand, seven hundred sixty-one".

Divisors: 1 7 21144592823 148012149761