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3121333230 = 235223466567
BaseRepresentation
bin1011101000001011…
…1100001111101110
322001112100011020110
42322002330033232
522343030130410
61233421000450
7140230615611
oct27202741756
98045304213
103121333230
111361a02944
127313b3126
133a9887252
1421878c178
1513405e720
hexba0bc3ee

3121333230 has 32 divisors (see below), whose sum is σ = 7524808704. Its totient is φ = 828621216.

The previous prime is 3121333219. The next prime is 3121333247. The reversal of 3121333230 is 323331213.

It is a super-2 number, since 2×31213332302 = 19485442265404465800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3121333197 and 3121333206.

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, 226594 + ... + 239973.

It is an arithmetic number, because the mean of its divisors is an integer number (235150272).

Almost surely, 23121333230 is an apocalyptic number.

3121333230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3121333230 is an abundant number, since it is smaller than the sum of its proper divisors (4403475474).

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

3121333230 is a wasteful number, since it uses less digits than its factorization.

3121333230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466800.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 3121333230 is about 55868.8932233314. The cubic root of 3121333230 is about 1461.4368212797.

Adding to 3121333230 its reverse (323331213), we get a palindrome (3444664443).

The spelling of 3121333230 in words is "three billion, one hundred twenty-one million, three hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 223 446 669 1115 1338 2230 3345 6690 466567 933134 1399701 2332835 2799402 4665670 6998505 13997010 104044441 208088882 312133323 520222205 624266646 1040444410 1560666615 3121333230