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2002402423 = 7311919799
BaseRepresentation
bin111011101011010…
…0011110001110111
312011112212120201201
41313112203301313
513100103334143
6530410233331
7100423065640
oct16726436167
95145776651
102002402423
1193833863a
1247a725847
1325bb08a08
1414dd226c7
15babd964d
hex775a3c77

2002402423 has 8 divisors (see below), whose sum is σ = 2295820800. Its totient is φ = 1710824280.

The previous prime is 2002402361. The next prime is 2002402427. The reversal of 2002402423 is 3242042002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2002402423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002402423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002402427) 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, 457723 + ... + 462076.

It is an arithmetic number, because the mean of its divisors is an integer number (286977600).

Almost surely, 22002402423 is an apocalyptic number.

2002402423 is a deficient number, since it is larger than the sum of its proper divisors (293418377).

2002402423 is an equidigital number, since it uses as much as digits as its factorization.

2002402423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920117.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2002402423 is about 44748.2113944234. The cubic root of 2002402423 is about 1260.4253252530.

Adding to 2002402423 its reverse (3242042002), we get a palindrome (5244444425).

The spelling of 2002402423 in words is "two billion, two million, four hundred two thousand, four hundred twenty-three".

Divisors: 1 7 311 2177 919799 6438593 286057489 2002402423