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3212055020 = 2251996311279
BaseRepresentation
bin1011111101110100…
…0001000111101100
322021212001022010202
42333131001013230
523034241230040
61250421253032
7142412005616
oct27735010754
98255038122
103212055020
1113a9137529
12757864178
133c25cc895
14226845db6
1513bed0015
hexbf7411ec

3212055020 has 48 divisors (see below), whose sum is σ = 6795264000. Its totient is φ = 1275341760.

The previous prime is 3212055019. The next prime is 3212055023. The reversal of 3212055020 is 205502123.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3212054983 and 3212055001.

It is not an unprimeable number, because it can be changed into a prime (3212055023) 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, 2510741 + ... + 2512019.

It is an arithmetic number, because the mean of its divisors is an integer number (141568000).

Almost surely, 23212055020 is an apocalyptic number.

It is an amenable number.

3212055020 is an abundant number, since it is smaller than the sum of its proper divisors (3583208980).

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

3212055020 is a wasteful number, since it uses less digits than its factorization.

3212055020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3212055020 is about 56674.9946625494. The cubic root of 3212055020 is about 1475.4607420165.

Adding to 3212055020 its reverse (205502123), we get a palindrome (3417557143).

The spelling of 3212055020 in words is "three billion, two hundred twelve million, fifty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 199 398 631 796 995 1262 1279 1990 2524 2558 3155 3980 5116 6310 6395 12620 12790 25580 125569 251138 254521 502276 509042 627845 807049 1018084 1255690 1272605 1614098 2511380 2545210 3228196 4035245 5090420 8070490 16140980 160602751 321205502 642411004 803013755 1606027510 3212055020