Search a number
-
+
60400405 = 51317471163
BaseRepresentation
bin1110011001101…
…0001100010101
311012122122210001
43212122030111
5110430303110
65554331301
71332252322
oct346321425
9135578701
1060400405
113110479a
1218289b31
13c68a2b0
148043b49
15548163a
hex399a315

60400405 has 32 divisors (see below), whose sum is σ = 84478464. Its totient is φ = 41051136.

The previous prime is 60400399. The next prime is 60400409. The reversal of 60400405 is 50400406.

60400405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 60400405 - 217 = 60269333 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 (60400409) 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 31 ways as a sum of consecutive naturals, for example, 51354 + ... + 52516.

It is an arithmetic number, because the mean of its divisors is an integer number (2639952).

Almost surely, 260400405 is an apocalyptic number.

60400405 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

60400405 is a deficient number, since it is larger than the sum of its proper divisors (24078059).

60400405 is a wasteful number, since it uses less digits than its factorization.

60400405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 60400405 is about 7771.7697469753. The cubic root of 60400405 is about 392.3556855144.

Subtracting from 60400405 its reverse (50400406), we obtain a palindrome (9999999).

The spelling of 60400405 in words is "sixty million, four hundred thousand, four hundred five".

Divisors: 1 5 13 17 47 65 85 221 235 611 799 1105 1163 3055 3995 5815 10387 15119 19771 51935 54661 75595 98855 257023 273305 710593 929237 1285115 3552965 4646185 12080081 60400405