Search a number
-
+
149470 = 2514947
BaseRepresentation
bin100100011111011110
321121000221
4210133132
514240340
63111554
71161526
oct443736
9247027
10149470
11a2332
12725ba
1353059
143c686
152e44a
hex247de

149470 has 8 divisors (see below), whose sum is σ = 269064. Its totient is φ = 59784.

The previous prime is 149459. The next prime is 149489. The reversal of 149470 is 74941.

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

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

149470 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7464 + ... + 7483.

It is an arithmetic number, because the mean of its divisors is an integer number (33633).

2149470 is an apocalyptic number.

149470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149470 is a deficient number, since it is larger than the sum of its proper divisors (119594).

149470 is a wasteful number, since it uses less digits than its factorization.

149470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14954.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 149470 is about 386.6135020922. The cubic root of 149470 is about 53.0702758278.

Subtracting from 149470 its reverse (74941), we obtain a square (74529 = 2732).

The spelling of 149470 in words is "one hundred forty-nine thousand, four hundred seventy".

Divisors: 1 2 5 10 14947 29894 74735 149470