Search a number
-
+
14949949 = 72305101
BaseRepresentation
bin111001000001…
…111000111101
31001010112110211
4321001320331
512311344244
61252232421
7241033600
oct71017075
931115424
1014949949
118491133
12500b711
133135931
141db2337
1514a4934
hexe41e3d

14949949 has 6 divisors (see below), whose sum is σ = 17390814. Its totient is φ = 12814200.

The previous prime is 14949943. The next prime is 14949959. The reversal of 14949949 is 94994941.

It can be written as a sum of positive squares in only one way, i.e., 14822500 + 127449 = 3850^2 + 357^2 .

It is not a de Polignac number, because 14949949 - 27 = 14949821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 305101 = 14949949 / (1 + 4 + 9 + 4 + 9 + 9 + 4 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14949943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152502 + ... + 152599.

It is an arithmetic number, because the mean of its divisors is an integer number (2898469).

Almost surely, 214949949 is an apocalyptic number.

It is an amenable number.

14949949 is a deficient number, since it is larger than the sum of its proper divisors (2440865).

14949949 is an equidigital number, since it uses as much as digits as its factorization.

14949949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305115 (or 305108 counting only the distinct ones).

The product of its digits is 419904, while the sum is 49.

The square root of 14949949 is about 3866.5163907580. The cubic root of 14949949 is about 246.3465987063.

The spelling of 14949949 in words is "fourteen million, nine hundred forty-nine thousand, nine hundred forty-nine".

Divisors: 1 7 49 305101 2135707 14949949