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30021330310432 = 251761998902447
BaseRepresentation
bin1101101001101111000101…
…01110101001010100100000
310221022000022010102210120121
412310313202232221110200
512413332141024413212
6143503335253450024
76215653360134166
oct664674256512440
9127260263383517
1030021330310432
119624a7a33aa8a
12344a402940914
131399ccb605206
1475b07c203236
15370dcc720d07
hex1b4de2ba9520

30021330310432 has 48 divisors (see below), whose sum is σ = 62591331398400. Its totient is φ = 14125404238848.

The previous prime is 30021330310421. The next prime is 30021330310457. The reversal of 30021330310432 is 23401303312003.

It is a junction number, because it is equal to n+sod(n) for n = 30021330310397 and 30021330310406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078968 + ... + 7823479.

It is an arithmetic number, because the mean of its divisors is an integer number (1303986070800).

Almost surely, 230021330310432 is an apocalyptic number.

30021330310432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30021330310432 is an abundant number, since it is smaller than the sum of its proper divisors (32570001087968).

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

30021330310432 is a wasteful number, since it uses less digits than its factorization.

30021330310432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8908673 (or 8908665 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 30021330310432 its reverse (23401303312003), we get a palindrome (53422633622435).

The spelling of 30021330310432 in words is "thirty trillion, twenty-one billion, three hundred thirty million, three hundred ten thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 6199 12398 24796 49592 99184 105383 198368 210766 421532 843064 1686128 3372256 8902447 17804894 35609788 71219576 142439152 151341599 284878304 302683198 605366396 1210732792 2421465584 4842931168 55186268953 110372537906 220745075812 441490151624 882980303248 938166572201 1765960606496 1876333144402 3752666288804 7505332577608 15010665155216 30021330310432