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68002401 = 322667467
BaseRepresentation
bin1000000110110…
…10001001100001
311201221212202110
410003122021201
5114402034101
610425305533
71454003505
oct403321141
9151855673
1068002401
1135427235
121a9352a9
131111c50c
149062305
155e83cd6
hex40da261

68002401 has 4 divisors (see below), whose sum is σ = 90669872. Its totient is φ = 45334932.

The previous prime is 68002399. The next prime is 68002409. The reversal of 68002401 is 10420086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68002401 - 21 = 68002399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68002409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11333731 + ... + 11333736.

It is an arithmetic number, because the mean of its divisors is an integer number (22667468).

Almost surely, 268002401 is an apocalyptic number.

It is an amenable number.

68002401 is a deficient number, since it is larger than the sum of its proper divisors (22667471).

68002401 is a wasteful number, since it uses less digits than its factorization.

68002401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22667470.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 68002401 is about 8246.3568319592. The cubic root of 68002401 is about 408.1703140832.

Adding to 68002401 its reverse (10420086), we get a palindrome (78422487).

The spelling of 68002401 in words is "sixty-eight million, two thousand, four hundred one".

Divisors: 1 3 22667467 68002401