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401210404 = 22717842879
BaseRepresentation
bin10111111010011…
…111110000100100
31000221221121012121
4113322133300210
51310202213104
6103451155324
712641142430
oct2772376044
91027847177
10401210404
11196522351
12b2445b44
136517650a
143b3db9c0
1525352254
hex17e9fc24

401210404 has 24 divisors (see below), whose sum is σ = 849623040. Its totient is φ = 161832576.

The previous prime is 401210393. The next prime is 401210417. The reversal of 401210404 is 404012104.

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, 420964 + ... + 421915.

It is an arithmetic number, because the mean of its divisors is an integer number (35400960).

Almost surely, 2401210404 is an apocalyptic number.

It is an amenable number.

401210404 is an abundant number, since it is smaller than the sum of its proper divisors (448412636).

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

401210404 is a wasteful number, since it uses less digits than its factorization.

401210404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842907 (or 842905 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 401210404 is about 20030.2372427288. The cubic root of 401210404 is about 737.5487457582.

Adding to 401210404 its reverse (404012104), we get a palindrome (805222508).

The spelling of 401210404 in words is "four hundred one million, two hundred ten thousand, four hundred four".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 842879 1685758 3371516 5900153 11800306 14328943 23600612 28657886 57315772 100302601 200605202 401210404