Search a number
-
+
399906001 = 11241251601
BaseRepresentation
bin10111110101100…
…001010011010001
31000212111022220101
4113311201103101
51304333443001
6103403212401
712624100465
oct2765412321
91025438811
10399906001
11195811330
12b1b17101
1364b0a891
143b17c4a5
1525195a01
hex17d614d1

399906001 has 16 divisors (see below), whose sum is σ = 440548416. Its totient is φ = 360000000.

The previous prime is 399905981. The next prime is 399906043. The reversal of 399906001 is 100609993.

It is a 3-Lehmer number, since φ(399906001) divides (399906001-1)3.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 399906001 - 27 = 399905873 is a prime.

It is a deceptive number, since it divides R399906000.

It is not an unprimeable number, because it can be changed into a prime (399906061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665101 + ... + 665701.

It is an arithmetic number, because the mean of its divisors is an integer number (27534276).

It is a Poulet number, since it divides 2399906000-1.

Almost surely, 2399906001 is an apocalyptic number.

It is an amenable number.

399906001 is a deficient number, since it is larger than the sum of its proper divisors (40642415).

399906001 is a wasteful number, since it uses less digits than its factorization.

399906001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 399906001 is about 19997.6498869242. The cubic root of 399906001 is about 736.7485793270.

The spelling of 399906001 in words is "three hundred ninety-nine million, nine hundred six thousand, one".

Divisors: 1 11 241 251 601 2651 2761 6611 60491 144841 150851 665401 1593251 1659361 36355091 399906001