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20212312332 = 22311621144941
BaseRepresentation
bin10010110100101111…
…110110100100001100
31221011122000212000110
4102310233312210030
5312343322443312
613141352000020
71313610551202
oct226457664414
957148025013
1020212312332
118632361463
123b01090010
131ba1683134
14d9a591072
157d470843c
hex4b4bf690c

20212312332 has 24 divisors (see below), whose sum is σ = 47166445872. Its totient is φ = 6736811200.

The previous prime is 20212312331. The next prime is 20212312339. The reversal of 20212312332 is 23321321202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20212312299 and 20212312308.

It is not an unprimeable number, because it can be changed into a prime (20212312331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66982 + ... + 211922.

It is an arithmetic number, because the mean of its divisors is an integer number (1965268578).

Almost surely, 220212312332 is an apocalyptic number.

It is an amenable number.

20212312332 is an abundant number, since it is smaller than the sum of its proper divisors (26954133540).

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

20212312332 is a wasteful number, since it uses less digits than its factorization.

20212312332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156569 (or 156567 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20212312332 its reverse (23321321202), we get a palindrome (43533633534).

The spelling of 20212312332 in words is "twenty billion, two hundred twelve million, three hundred twelve thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 11621 23242 34863 46484 69726 139452 144941 289882 434823 579764 869646 1739292 1684359361 3368718722 5053078083 6737437444 10106156166 20212312332