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401214210 = 235112311909
BaseRepresentation
bin10111111010100…
…000101100000010
31000221221210102120
4113322200230002
51310202323320
6103451225110
712641156505
oct2772405402
91027853376
10401214210
111965251a1
12b2448196
1365178177
143b3dd13c
1525353440
hex17ea0b02

401214210 has 32 divisors (see below), whose sum is σ = 963852480. Its totient is φ = 106886208.

The previous prime is 401214197. The next prime is 401214257. The reversal of 401214210 is 12412104.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 401214210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27736 + ... + 39644.

It is an arithmetic number, because the mean of its divisors is an integer number (30120390).

Almost surely, 2401214210 is an apocalyptic number.

401214210 is an abundant number, since it is smaller than the sum of its proper divisors (562638270).

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

401214210 is a wasteful number, since it uses less digits than its factorization.

401214210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13042.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 401214210 is about 20030.3322488670. The cubic root of 401214210 is about 737.5510779523.

Adding to 401214210 its reverse (12412104), we get a palindrome (413626314).

The spelling of 401214210 in words is "four hundred one million, two hundred fourteen thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 1123 2246 3369 5615 6738 11230 11909 16845 23818 33690 35727 59545 71454 119090 178635 357270 13373807 26747614 40121421 66869035 80242842 133738070 200607105 401214210