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3021000030 = 233511188889
BaseRepresentation
bin1011010000010000…
…1100110101011110
321210112112200222000
42310010030311132
522141334000110
61215434303130
7134602035156
oct26404146536
97715480860
103021000030
111310304044
12703887aa6
13391b57ba9
14209311766
1512a3411c0
hexb410cd5e

3021000030 has 32 divisors (see below), whose sum is σ = 8056000800. Its totient is φ = 805599936.

The previous prime is 3021000029. The next prime is 3021000041. The reversal of 3021000030 is 300001203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 3020999976 and 3021000021.

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, 5594175 + ... + 5594714.

It is an arithmetic number, because the mean of its divisors is an integer number (251750025).

Almost surely, 23021000030 is an apocalyptic number.

3021000030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3021000030 is an abundant number, since it is smaller than the sum of its proper divisors (5035000770).

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

3021000030 is a wasteful number, since it uses less digits than its factorization.

3021000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11188905 (or 11188899 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 3021000030 is about 54963.6246075529. The cubic root of 3021000030 is about 1445.6070022371.

Adding to 3021000030 its reverse (300001203), we get a palindrome (3321001233).

The spelling of 3021000030 in words is "three billion, twenty-one million, thirty", and thus it is an aban number and an uban number.

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 11188889 22377778 33566667 55944445 67133334 100700001 111888890 167833335 201400002 302100003 335666670 503500005 604200006 1007000010 1510500015 3021000030