Search a number
-
+
68023943 = 1316731333
BaseRepresentation
bin1000000110111…
…11011010000111
311201222222022022
410003133122013
5114403231233
610425553355
71454123351
oct403373207
9151888268
1068023943
1135441439
121a94585b
1311129270
14906a0d1
155e8a398
hex40df687

68023943 has 8 divisors (see below), whose sum is σ = 73697568. Its totient is φ = 62413344.

The previous prime is 68023931. The next prime is 68023973. The reversal of 68023943 is 34932086.

It is a happy number.

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 68023943 - 24 = 68023927 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 (68023973) 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, 13496 + ... + 17837.

It is an arithmetic number, because the mean of its divisors is an integer number (9212196).

Almost surely, 268023943 is an apocalyptic number.

68023943 is a deficient number, since it is larger than the sum of its proper divisors (5673625).

68023943 is a wasteful number, since it uses less digits than its factorization.

68023943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31513.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 68023943 is about 8247.6628810833. The cubic root of 68023943 is about 408.2134099958.

The spelling of 68023943 in words is "sixty-eight million, twenty-three thousand, nine hundred forty-three".

Divisors: 1 13 167 2171 31333 407329 5232611 68023943