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3213102020 = 225347462983
BaseRepresentation
bin1011111110000100…
…0000101111000100
322021221000111100112
42333201000233010
523040023231040
61250455532152
7142423626242
oct27741005704
98257014315
103213102020
1113a9792117
1275808a058
133c28a82cb
14226a39792
1513c13a365
hexbf840bc4

3213102020 has 24 divisors (see below), whose sum is σ = 6766974144. Its totient is φ = 1281534176.

The previous prime is 3213101999. The next prime is 3213102023. The reversal of 3213102020 is 202013123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3213101986 and 3213102004.

It is not an unprimeable number, because it can be changed into a prime (3213102023) 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, 224552 + ... + 238431.

It is an arithmetic number, because the mean of its divisors is an integer number (281957256).

Almost surely, 23213102020 is an apocalyptic number.

It is an amenable number.

3213102020 is an abundant number, since it is smaller than the sum of its proper divisors (3553872124).

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

3213102020 is a wasteful number, since it uses less digits than its factorization.

3213102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463339 (or 463337 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3213102020 is about 56684.2307877597. The cubic root of 3213102020 is about 1475.6210381062.

Adding to 3213102020 its reverse (202013123), we get a palindrome (3415115143).

The spelling of 3213102020 in words is "three billion, two hundred thirteen million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 347 694 1388 1735 3470 6940 462983 925966 1851932 2314915 4629830 9259660 160655101 321310202 642620404 803275505 1606551010 3213102020