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402468071 = 31103126047
BaseRepresentation
bin10111111111010…
…010110011100111
31001001022111101212
4113333102303213
51311012434241
6103534142035
712654631205
oct2777226347
91031274355
10402468071
11197201245
12b295191b
13654c6ab5
143b648075
15254eebeb
hex17fd2ce7

402468071 has 8 divisors (see below), whose sum is σ = 419487744. Its totient is φ = 385700760.

The previous prime is 402468043. The next prime is 402468083. The reversal of 402468071 is 170864204.

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

It is not a de Polignac number, because 402468071 - 210 = 402467047 is a prime.

It is a super-2 number, since 2×4024680712 = 323961096348922082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402468041) 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, 59831 + ... + 66216.

It is an arithmetic number, because the mean of its divisors is an integer number (52435968).

Almost surely, 2402468071 is an apocalyptic number.

402468071 is a deficient number, since it is larger than the sum of its proper divisors (17019673).

402468071 is a wasteful number, since it uses less digits than its factorization.

402468071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126181.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 402468071 is about 20061.6068897783. The cubic root of 402468071 is about 738.3186021392.

The spelling of 402468071 in words is "four hundred two million, four hundred sixty-eight thousand, seventy-one".

Divisors: 1 31 103 3193 126047 3907457 12982841 402468071