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332213231 = 7149443719
BaseRepresentation
bin10011110011010…
…010101111101111
3212011010011212202
4103303102233233
51140021310411
652544252115
711142523460
oct2363225757
9764104782
10332213231
11160586799
129331103b
1353a9929c
143219ad67
151e27383b
hex13cd2bef

332213231 has 16 divisors (see below), whose sum is σ = 383616000. Its totient is φ = 281812128.

The previous prime is 332213207. The next prime is 332213243. The reversal of 332213231 is 132312233.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-332213231 is a prime.

It is a super-2 number, since 2×3322132312 = 220731261702918722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332213281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461690 + ... + 462408.

It is an arithmetic number, because the mean of its divisors is an integer number (23976000).

Almost surely, 2332213231 is an apocalyptic number.

332213231 is a deficient number, since it is larger than the sum of its proper divisors (51402769).

332213231 is a wasteful number, since it uses less digits than its factorization.

332213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318.

The product of its digits is 648, while the sum is 20.

The square root of 332213231 is about 18226.7175048060. The cubic root of 332213231 is about 692.5837672304.

Adding to 332213231 its reverse (132312233), we get a palindrome (464525464).

The spelling of 332213231 in words is "three hundred thirty-two million, two hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 7 149 443 719 1043 3101 5033 66007 107131 318517 462049 749917 2229619 47459033 332213231