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2730387930 = 235313538317
BaseRepresentation
bin1010001010111110…
…0110100111011010
321001021201002002220
42202233212213122
521042434403210
61130533404510
7124442625444
oct24257464732
97037632086
102730387930
111181261956
12642499736
1334689617a
141bc8a3494
1510ea88c70
hexa2be69da

2730387930 has 64 divisors (see below), whose sum is σ = 6784293888. Its totient is φ = 702535680.

The previous prime is 2730387917. The next prime is 2730387971. The reversal of 2730387930 is 397830372.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324132 + ... + 332448.

It is an arithmetic number, because the mean of its divisors is an integer number (106004592).

Almost surely, 22730387930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2730387930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3392146944).

2730387930 is an abundant number, since it is smaller than the sum of its proper divisors (4053905958).

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

2730387930 is a wasteful number, since it uses less digits than its factorization.

2730387930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 2730387930 is about 52253.1140698810. The cubic root of 2730387930 is about 1397.6811835796.

The spelling of 2730387930 in words is "two billion, seven hundred thirty million, three hundred eighty-seven thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 353 465 706 930 1059 1765 2118 3530 5295 8317 10590 10943 16634 21886 24951 32829 41585 49902 54715 65658 83170 109430 124755 164145 249510 257827 328290 515654 773481 1289135 1546962 2578270 2935901 3867405 5871802 7734810 8807703 14679505 17615406 29359010 44038515 88077030 91012931 182025862 273038793 455064655 546077586 910129310 1365193965 2730387930