Search a number
-
+
3221004031 = 737109111399
BaseRepresentation
bin1011111111111100…
…1001111011111111
322022110212221212121
42333333021323333
523044034112111
61251341143411
7142551040210
oct27777117377
98273787777
103221004031
11140319a003
1275a85ab67
133c4413c5b
14227ad5407
1513cb9b871
hexbffc9eff

3221004031 has 16 divisors (see below), whose sum is σ = 3784435200. Its totient is φ = 2683545120.

The previous prime is 3221004023. The next prime is 3221004041. The reversal of 3221004031 is 1304001223.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3221004031 - 23 = 3221004023 is a prime.

It is a super-2 number, since 2×32210040312 = 20749733935436497922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3221003996 and 3221004014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221004001) 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, 276870 + ... + 288268.

It is an arithmetic number, because the mean of its divisors is an integer number (236527200).

Almost surely, 23221004031 is an apocalyptic number.

3221004031 is a deficient number, since it is larger than the sum of its proper divisors (563431169).

3221004031 is a wasteful number, since it uses less digits than its factorization.

3221004031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12534.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3221004031 is about 56753.8900076462. The cubic root of 3221004031 is about 1476.8297172186.

Adding to 3221004031 its reverse (1304001223), we get a palindrome (4525005254).

The spelling of 3221004031 in words is "three billion, two hundred twenty-one million, four thousand, thirty-one".

Divisors: 1 7 37 259 1091 7637 11399 40367 79793 282569 421763 2952341 12436309 87054163 460143433 3221004031