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30310005512040 = 23352382710600721
BaseRepresentation
bin1101110010001000110010…
…00111001001011101101000
310222022121102101202110110020
412321010121013021131220
512433044342402341130
6144244120241120440
76245553122641602
oct671043107113550
9128277371673406
1030310005512040
119726445a27671
123496347629120
1313bb2b5138187
1476b025288172
15378675a83e10
hex1b91191c9768

30310005512040 has 64 divisors (see below), whose sum is σ = 90933841373760. Its totient is φ = 8082328151040.

The previous prime is 30310005512029. The next prime is 30310005512047. The reversal of 30310005512040 is 4021550001303.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30310005512040.

It is not an unprimeable number, because it can be changed into a prime (30310005512047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2441121 + ... + 8159600.

It is an arithmetic number, because the mean of its divisors is an integer number (1420841271465).

Almost surely, 230310005512040 is an apocalyptic number.

30310005512040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30310005512040 is an abundant number, since it is smaller than the sum of its proper divisors (60623835861720).

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

30310005512040 is a wasteful number, since it uses less digits than its factorization.

30310005512040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10624562 (or 10624558 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 30310005512040 its reverse (4021550001303), we get a palindrome (34331555513343).

The spelling of 30310005512040 in words is "thirty trillion, three hundred ten billion, five million, five hundred twelve thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 23827 47654 71481 95308 119135 142962 190616 238270 285924 357405 476540 571848 714810 953080 1429620 2859240 10600721 21201442 31802163 42402884 53003605 63604326 84805768 106007210 127208652 159010815 212014420 254417304 318021630 424028840 636043260 1272086520 252583379267 505166758534 757750137801 1010333517068 1262916896335 1515500275602 2020667034136 2525833792670 3031000551204 3788750689005 5051667585340 6062001102408 7577501378010 10103335170680 15155002756020 30310005512040