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316404380 = 22541385859
BaseRepresentation
bin10010110110111…
…111001010011100
3211001101000012202
4102312333022130
51121444420010
651221351032
710561251515
oct2266771234
9731330182
10316404380
11152669326
1289b68478
1350722736
1430043a0c
151cb9e6a5
hex12dbf29c

316404380 has 24 divisors (see below), whose sum is σ = 680657040. Its totient is φ = 123474560.

The previous prime is 316404367. The next prime is 316404409. The reversal of 316404380 is 83404613.

It is a super-2 number, since 2×3164043802 = 200223463366368800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192110 + ... + 193749.

It is an arithmetic number, because the mean of its divisors is an integer number (28360710).

Almost surely, 2316404380 is an apocalyptic number.

It is an amenable number.

316404380 is an abundant number, since it is smaller than the sum of its proper divisors (364252660).

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

316404380 is a wasteful number, since it uses less digits than its factorization.

316404380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385909 (or 385907 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 316404380 is about 17787.7592742875. The cubic root of 316404380 is about 681.4188798835.

Adding to 316404380 its reverse (83404613), we get a palindrome (399808993).

The spelling of 316404380 in words is "three hundred sixteen million, four hundred four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 385859 771718 1543436 1929295 3858590 7717180 15820219 31640438 63280876 79101095 158202190 316404380