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3211200020 = 225722937143
BaseRepresentation
bin1011111101100111…
…0000011000010100
322021210102212022002
42333121300120110
523034031400040
61250351054432
7142401515120
oct27731603024
98253385262
103211200020
1113a8703116
12757511418
133c2390672
142266a2580
1513bdb1a15
hexbf670614

3211200020 has 24 divisors (see below), whose sum is σ = 7706880384. Its totient is φ = 1100982816.

The previous prime is 3211200019. The next prime is 3211200029. The reversal of 3211200020 is 200021123.

It is a happy number.

3211200020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3211199974 and 3211200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211200029) 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, 11468432 + ... + 11468711.

It is an arithmetic number, because the mean of its divisors is an integer number (321120016).

Almost surely, 23211200020 is an apocalyptic number.

It is an amenable number.

3211200020 is an abundant number, since it is smaller than the sum of its proper divisors (4495680364).

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

3211200020 is a wasteful number, since it uses less digits than its factorization.

3211200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22937159 (or 22937157 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 3211200020 is about 56667.4511514326. The cubic root of 3211200020 is about 1475.3298153589.

Adding to 3211200020 its reverse (200021123), we get a palindrome (3411221143).

The spelling of 3211200020 in words is "three billion, two hundred eleven million, two hundred thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 22937143 45874286 91748572 114685715 160560001 229371430 321120002 458742860 642240004 802800005 1605600010 3211200020