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148720159 = 721245737
BaseRepresentation
bin10001101110101…
…00101000011111
3101100211202201001
420313110220133
5301033021114
622431331131
73454046320
oct1067245037
9340752631
10148720159
1176a48725
1241980aa7
1324a714c3
1415a74447
15d0ca374
hex8dd4a1f

148720159 has 4 divisors (see below), whose sum is σ = 169965904. Its totient is φ = 127474416.

The previous prime is 148720141. The next prime is 148720211. The reversal of 148720159 is 951027841.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148720159 - 25 = 148720127 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 (148720259) 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, 10622862 + ... + 10622875.

It is an arithmetic number, because the mean of its divisors is an integer number (42491476).

Almost surely, 2148720159 is an apocalyptic number.

148720159 is a deficient number, since it is larger than the sum of its proper divisors (21245745).

148720159 is an equidigital number, since it uses as much as digits as its factorization.

148720159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21245744.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 148720159 is about 12195.0874945611. The cubic root of 148720159 is about 529.8138173617.

The spelling of 148720159 in words is "one hundred forty-eight million, seven hundred twenty thousand, one hundred fifty-nine".

Divisors: 1 7 21245737 148720159