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3005040420 = 2232517599491
BaseRepresentation
bin1011001100011101…
…0100011100100100
321202102111212111100
42303013110130210
522123242243140
61214104240100
7134316264534
oct26307243444
97672455440
103005040420
1113022a3388
126ba470030
1338b75a835
142071594c4
15128c3c530
hexb31d4724

3005040420 has 72 divisors (see below), whose sum is σ = 9121432320. Its totient is φ = 800804160.

The previous prime is 3005040371. The next prime is 3005040421. The reversal of 3005040420 is 240405003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3005040393 and 3005040402.

It is not an unprimeable number, because it can be changed into a prime (3005040421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311875 + ... + 321365.

It is an arithmetic number, because the mean of its divisors is an integer number (126686560).

Almost surely, 23005040420 is an apocalyptic number.

3005040420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3005040420 is an abundant number, since it is smaller than the sum of its proper divisors (6116391900).

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

3005040420 is a wasteful number, since it uses less digits than its factorization.

3005040420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11265 (or 11260 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 3005040420 is about 54818.2489687513. The cubic root of 3005040420 is about 1443.0568454287.

Adding to 3005040420 its reverse (240405003), we get a palindrome (3245445423).

The spelling of 3005040420 in words is "three billion, five million, forty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1759 3518 5277 7036 8795 9491 10554 15831 17590 18982 21108 26385 28473 31662 35180 37964 47455 52770 56946 63324 79155 85419 94910 105540 113892 142365 158310 170838 189820 284730 316620 341676 427095 569460 854190 1708380 16694669 33389338 50084007 66778676 83473345 100168014 150252021 166946690 200336028 250420035 300504042 333893380 500840070 601008084 751260105 1001680140 1502520210 3005040420