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30262027840 = 2651141209687
BaseRepresentation
bin11100001011110000…
…011110011001000000
32220010000100021222221
4130023300132121000
5443434034342330
621522512140424
72120630664262
oct341360363100
986100307887
1030262027840
111191a142470
125a46837714
132b13759365
141671175b32
15bc1b36b7a
hex70bc1e640

30262027840 has 112 divisors (see below), whose sum is σ = 80530257024. Its totient is φ = 10735923200.

The previous prime is 30262027813. The next prime is 30262027841. The reversal of 30262027840 is 4872026203.

It is a junction number, because it is equal to n+sod(n) for n = 30262027796 and 30262027805.

It is not an unprimeable number, because it can be changed into a prime (30262027841) 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, 39477 + ... + 249163.

It is an arithmetic number, because the mean of its divisors is an integer number (719020152).

Almost surely, 230262027840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30262027840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40265128512).

30262027840 is an abundant number, since it is smaller than the sum of its proper divisors (50268229184).

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

30262027840 is a wasteful number, since it uses less digits than its factorization.

30262027840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209756 (or 209746 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 30262027840 in words is "thirty billion, two hundred sixty-two million, twenty-seven thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 41 44 55 64 80 82 88 110 160 164 176 205 220 320 328 352 410 440 451 656 704 820 880 902 1312 1640 1760 1804 2255 2624 3280 3520 3608 4510 6560 7216 9020 13120 14432 18040 28864 36080 72160 144320 209687 419374 838748 1048435 1677496 2096870 2306557 3354992 4193740 4613114 6709984 8387480 8597167 9226228 11532785 13419968 16774960 17194334 18452456 23065570 33549920 34388668 36904912 42985835 46131140 67099840 68777336 73809824 85971670 92262280 94568837 137554672 147619648 171943340 184524560 189137674 275109344 343886680 369049120 378275348 472844185 550218688 687773360 738098240 756550696 945688370 1375546720 1513101392 1891376740 2751093440 3026202784 3782753480 6052405568 7565506960 15131013920 30262027840