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222000401 = 7149921157
BaseRepresentation
bin11010011101101…
…11010100010001
3120110201210022002
431032313110101
5423313003101
634010123345
75333654330
oct1516672421
9513653262
10222000401
1110434a207
1262420555
1336cbb0ac
14216abd17
1514752d6b
hexd3b7511

222000401 has 8 divisors (see below), whose sum is σ = 253896000. Its totient is φ = 190150128.

The previous prime is 222000379. The next prime is 222000431. The reversal of 222000401 is 104000222.

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

It is a de Polignac number, because none of the positive numbers 2k-222000401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222000431) 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, 86 + ... + 21071.

It is an arithmetic number, because the mean of its divisors is an integer number (31737000).

Almost surely, 2222000401 is an apocalyptic number.

It is an amenable number.

222000401 is a deficient number, since it is larger than the sum of its proper divisors (31895599).

222000401 is a wasteful number, since it uses less digits than its factorization.

222000401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22663.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 222000401 is about 14899.6778824242. The cubic root of 222000401 is about 605.5052592267.

Adding to 222000401 its reverse (104000222), we get a palindrome (326000623).

The spelling of 222000401 in words is "two hundred twenty-two million, four hundred one", and thus it is an aban number.

Divisors: 1 7 1499 10493 21157 148099 31714343 222000401