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23212213332 = 22371125121443
BaseRepresentation
bin10101100111100011…
…100100010001010100
32012220200212121112220
4111213203210101110
5340014311311312
614355154142340
71451135362230
oct254743442124
965820777486
1023212213332
119931764490
1245b98819b0
13225c031599
1411a2b6d5c0
1590cc7cc8c
hex5678e4454

23212213332 has 48 divisors (see below), whose sum is σ = 67526441472. Its totient is φ = 6029146080.

The previous prime is 23212213279. The next prime is 23212213337. The reversal of 23212213332 is 23331221232.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212213337) 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, 12559798 + ... + 12561645.

It is an arithmetic number, because the mean of its divisors is an integer number (1406800864).

Almost surely, 223212213332 is an apocalyptic number.

23212213332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23212213332 is an abundant number, since it is smaller than the sum of its proper divisors (44314228140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23212213332 is a wasteful number, since it uses less digits than its factorization.

23212213332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25121468 (or 25121466 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 23212213332 its reverse (23331221232), we get a palindrome (46543434564).

The spelling of 23212213332 in words is "twenty-three billion, two hundred twelve million, two hundred thirteen thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 25121443 50242886 75364329 100485772 150728658 175850101 276335873 301457316 351700202 527550303 552671746 703400404 829007619 1055100606 1105343492 1658015238 1934351111 2110201212 3316030476 3868702222 5803053333 7737404444 11606106666 23212213332