Search a number
-
+
68457354 = 2371629937
BaseRepresentation
bin1000001010010…
…01001110001010
311202210222211120
410011021032022
5120011113404
610443140110
71460610060
oct405111612
9152728746
1068457354
1135708029
121ab14636
131124b614
149140030
1560239d9
hex414938a

68457354 has 16 divisors (see below), whose sum is σ = 156474048. Its totient is φ = 19559232.

The previous prime is 68457353. The next prime is 68457359. The reversal of 68457354 is 45375486.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1629937 = 68457354 / (6 + 8 + 4 + 5 + 7 + 3 + 5 + 4).

It is not an unprimeable number, because it can be changed into a prime (68457353) 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, 814927 + ... + 815010.

It is an arithmetic number, because the mean of its divisors is an integer number (9779628).

Almost surely, 268457354 is an apocalyptic number.

68457354 is an abundant number, since it is smaller than the sum of its proper divisors (88016694).

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

68457354 is a wasteful number, since it uses less digits than its factorization.

68457354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629949.

The product of its digits is 403200, while the sum is 42.

The square root of 68457354 is about 8273.8959384319. The cubic root of 68457354 is about 409.0785453413.

The spelling of 68457354 in words is "sixty-eight million, four hundred fifty-seven thousand, three hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 1629937 3259874 4889811 9779622 11409559 22819118 34228677 68457354