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1331214232 = 23213777867
BaseRepresentation
bin100111101011000…
…1011011110011000
310102202220200121211
41033112023132120
510211242323412
6340032312504
744663064025
oct11726133630
93382820554
101331214232
11623487a57
123119a2734
13182a4683a
14c8b2854c
157bd08ca7
hex4f58b798

1331214232 has 16 divisors (see below), whose sum is σ = 2497226760. Its totient is φ = 665287104.

The previous prime is 1331214193. The next prime is 1331214277. The reversal of 1331214232 is 2324121331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21838 + ... + 56029.

Almost surely, 21331214232 is an apocalyptic number.

It is an amenable number.

1331214232 is a deficient number, since it is larger than the sum of its proper divisors (1166012528).

1331214232 is a wasteful number, since it uses less digits than its factorization.

1331214232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80010 (or 80006 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 1331214232 is about 36485.8086384282. The cubic root of 1331214232 is about 1100.0590139138.

Adding to 1331214232 its reverse (2324121331), we get a palindrome (3655335563).

The spelling of 1331214232 in words is "one billion, three hundred thirty-one million, two hundred fourteen thousand, two hundred thirty-two".

Divisors: 1 2 4 8 2137 4274 8548 17096 77867 155734 311468 622936 166401779 332803558 665607116 1331214232