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233212020 = 22353886867
BaseRepresentation
bin11011110011010…
…00100001110100
3121020211101202020
431321220201310
5434200241040
635050313140
75531161266
oct1571504164
9536741666
10233212020
1110a707708
12661287b0
13394152a2
1422d89b36
1515719cd0
hexde68874

233212020 has 24 divisors (see below), whose sum is σ = 652993824. Its totient is φ = 62189856.

The previous prime is 233212003. The next prime is 233212043. The reversal of 233212020 is 20212332.

233212020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1943374 + ... + 1943493.

It is an arithmetic number, because the mean of its divisors is an integer number (27208076).

Almost surely, 2233212020 is an apocalyptic number.

233212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233212020 is an abundant number, since it is smaller than the sum of its proper divisors (419781804).

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

233212020 is a wasteful number, since it uses less digits than its factorization.

233212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3886879 (or 3886877 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 233212020 is about 15271.2808893033. The cubic root of 233212020 is about 615.5315386132.

Adding to 233212020 its reverse (20212332), we get a palindrome (253424352).

The spelling of 233212020 in words is "two hundred thirty-three million, two hundred twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3886867 7773734 11660601 15547468 19434335 23321202 38868670 46642404 58303005 77737340 116606010 233212020