Search a number
-
+
147640135 = 5311914987
BaseRepresentation
bin10001100110011…
…00111101000111
3101021210220012011
420303030331013
5300243441020
622352235051
73441630466
oct1063147507
9337726164
10147640135
1176380245
124153ba87
1324783a36
14158729dd
15ce6535a
hex8cccf47

147640135 has 16 divisors (see below), whose sum is σ = 183877632. Its totient is φ = 113680800.

The previous prime is 147640133. The next prime is 147640159. The reversal of 147640135 is 531046741.

It is not a de Polignac number, because 147640135 - 21 = 147640133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 147640097 and 147640106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147640133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27112 + ... + 32098.

It is an arithmetic number, because the mean of its divisors is an integer number (11492352).

Almost surely, 2147640135 is an apocalyptic number.

147640135 is a deficient number, since it is larger than the sum of its proper divisors (36237497).

147640135 is a wasteful number, since it uses less digits than its factorization.

147640135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5214.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 147640135 is about 12150.7256984923. The cubic root of 147640135 is about 528.5281758931.

Adding to 147640135 its reverse (531046741), we get a palindrome (678686876).

The spelling of 147640135 in words is "one hundred forty-seven million, six hundred forty thousand, one hundred thirty-five".

Divisors: 1 5 31 155 191 955 4987 5921 24935 29605 154597 772985 952517 4762585 29528027 147640135