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148049405 = 575379811
BaseRepresentation
bin10001101001100…
…00110111111101
3101022120200121022
420310300313331
5300400040110
622405113525
73445253630
oct1064606775
9338520538
10148049405
117662a789
12416b88a5
13248980ca
141593bc17
15cee6755
hex8d30dfd

148049405 has 16 divisors (see below), whose sum is σ = 206872704. Its totient is φ = 99602880.

The previous prime is 148049399. The next prime is 148049423. The reversal of 148049405 is 504940841.

It is a happy number.

It is not a de Polignac number, because 148049405 - 212 = 148045309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38051 + ... + 41760.

It is an arithmetic number, because the mean of its divisors is an integer number (12929544).

Almost surely, 2148049405 is an apocalyptic number.

It is an amenable number.

148049405 is a deficient number, since it is larger than the sum of its proper divisors (58823299).

148049405 is an equidigital number, since it uses as much as digits as its factorization.

148049405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79876.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 148049405 is about 12167.5554241598. Note that the first 3 decimals coincide. The cubic root of 148049405 is about 529.0160991285.

The spelling of 148049405 in words is "one hundred forty-eight million, forty-nine thousand, four hundred five".

Divisors: 1 5 7 35 53 265 371 1855 79811 399055 558677 2793385 4229983 21149915 29609881 148049405