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148162389 = 3232147281
BaseRepresentation
bin10001101010011…
…00011101010101
3101022210102120220
420311030131111
5300412144024
622411344553
73446234214
oct1065143525
9338712526
10148162389
11766a7661
1241752159
132490766b
141596b07b
15d019e79
hex8d4c755

148162389 has 8 divisors (see below), whose sum is σ = 206139072. Its totient is φ = 94480320.

The previous prime is 148162381. The next prime is 148162403. The reversal of 148162389 is 983261841.

148162389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 148162389 - 23 = 148162381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148162389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148162381) 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, 1073572 + ... + 1073709.

It is an arithmetic number, because the mean of its divisors is an integer number (25767384).

Almost surely, 2148162389 is an apocalyptic number.

It is an amenable number.

148162389 is a deficient number, since it is larger than the sum of its proper divisors (57976683).

148162389 is a wasteful number, since it uses less digits than its factorization.

148162389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147307.

The product of its digits is 82944, while the sum is 42.

The square root of 148162389 is about 12172.1973776307. The cubic root of 148162389 is about 529.1506379036.

It can be divided in two parts, 14816 and 2389, that added together give a triangular number (17205 = T185).

The spelling of 148162389 in words is "one hundred forty-eight million, one hundred sixty-two thousand, three hundred eighty-nine".

Divisors: 1 3 23 69 2147281 6441843 49387463 148162389