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3120123230 = 257113394453
BaseRepresentation
bin1011100111111001…
…0100110101011110
322001110001200102122
42321332110311132
522342222420410
61233335022542
7140214416120
oct27176246536
98043050378
103120123230
111361256844
12730b0aa52
133a9552583
14218555210
15133dc0e55
hexb9f94d5e

3120123230 has 32 divisors (see below), whose sum is σ = 6475356864. Its totient is φ = 1060286976.

The previous prime is 3120123229. The next prime is 3120123241. The reversal of 3120123230 is 323210213.

It is a junction number, because it is equal to n+sod(n) for n = 3120123199 and 3120123208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189317 + ... + 205136.

It is an arithmetic number, because the mean of its divisors is an integer number (202354902).

Almost surely, 23120123230 is an apocalyptic number.

3120123230 is an abundant number, since it is smaller than the sum of its proper divisors (3355233634).

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

3120123230 is a wasteful number, since it uses less digits than its factorization.

3120123230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394580.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3120123230 is about 55858.0632496330. The cubic root of 3120123230 is about 1461.2479525096.

Adding to 3120123230 its reverse (323210213), we get a palindrome (3443333443).

The spelling of 3120123230 in words is "three billion, one hundred twenty million, one hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 113 226 565 791 1130 1582 3955 7910 394453 788906 1972265 2761171 3944530 5522342 13805855 27611710 44573189 89146378 222865945 312012323 445731890 624024646 1560061615 3120123230