Search a number
-
+
124355005 = 5145317117
BaseRepresentation
bin1110110100110…
…00000110111101
322122222212222221
413122120012331
5223313330010
620201205341
73040000015
oct732300675
9278885887
10124355005
1164216835
1235790851
131c9c0258
1412730c45
15adb5dda
hex76981bd

124355005 has 8 divisors (see below), whose sum is σ = 149337432. Its totient is φ = 99409728.

The previous prime is 124355003. The next prime is 124355029. The reversal of 124355005 is 500553421.

It can be written as a sum of positive squares in 4 ways, for example, as 8168164 + 116186841 = 2858^2 + 10779^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 124355005 - 21 = 124355003 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 (124355003) 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, 1294 + ... + 15823.

It is an arithmetic number, because the mean of its divisors is an integer number (18667179).

Almost surely, 2124355005 is an apocalyptic number.

It is an amenable number.

124355005 is a deficient number, since it is larger than the sum of its proper divisors (24982427).

124355005 is a wasteful number, since it uses less digits than its factorization.

124355005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18575.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 124355005 is about 11151.4575280543. The cubic root of 124355005 is about 499.1385232347.

The spelling of 124355005 in words is "one hundred twenty-four million, three hundred fifty-five thousand, five".

Divisors: 1 5 1453 7265 17117 85585 24871001 124355005