Search a number
-
+
67248816 = 2431401017
BaseRepresentation
bin1000000001000…
…10001010110000
311200112121000220
410000202022300
5114203430231
610401213040
71444414455
oct400421260
9150477026
1067248816
1134a62038
121a631180
1310c174cb
148d0782c
155d85896
hex40222b0

67248816 has 20 divisors (see below), whose sum is σ = 173726232. Its totient is φ = 22416256.

The previous prime is 67248799. The next prime is 67248817. The reversal of 67248816 is 61884276.

It is not an unprimeable number, because it can be changed into a prime (67248817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700461 + ... + 700556.

Almost surely, 267248816 is an apocalyptic number.

It is an amenable number.

67248816 is an abundant number, since it is smaller than the sum of its proper divisors (106477416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67248816 is a wasteful number, since it uses less digits than its factorization.

67248816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401028 (or 1401022 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 67248816 is about 8200.5375433565. The cubic root of 67248816 is about 406.6569641449.

The spelling of 67248816 in words is "sixty-seven million, two hundred forty-eight thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 48 1401017 2802034 4203051 5604068 8406102 11208136 16812204 22416272 33624408 67248816