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2780493030 = 2325729152189
BaseRepresentation
bin1010010110111010…
…1111010011100110
321011202222200101100
42211232233103212
521143301234110
61135523340530
7125621541450
oct24556572346
97152880340
102780493030
1111a7574627
12657221746
1335408a363
141c53c72d0
15114184bc0
hexa5baf4e6

2780493030 has 96 divisors (see below), whose sum is σ = 8546990400. Its totient is φ = 613622016.

The previous prime is 2780493007. The next prime is 2780493043. The reversal of 2780493030 is 303940872.

It is a super-2 number, since 2×27804930302 = 15462282979757161800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57825 + ... + 94364.

It is an arithmetic number, because the mean of its divisors is an integer number (89031150).

Almost surely, 22780493030 is an apocalyptic number.

2780493030 is an abundant number, since it is smaller than the sum of its proper divisors (5766497370).

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

2780493030 is a wasteful number, since it uses less digits than its factorization.

2780493030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152238 (or 152235 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 2780493030 is about 52730.3805220482. The cubic root of 2780493030 is about 1406.1789861621.

The spelling of 2780493030 in words is "two billion, seven hundred eighty million, four hundred ninety-three thousand, thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 29 30 35 42 45 58 63 70 87 90 105 126 145 174 203 210 261 290 315 406 435 522 609 630 870 1015 1218 1305 1827 2030 2610 3045 3654 6090 9135 18270 152189 304378 456567 760945 913134 1065323 1369701 1521890 2130646 2282835 2739402 3195969 4413481 4565670 5326615 6391938 6848505 8826962 9587907 10653230 13240443 13697010 15979845 19175814 22067405 26480886 30894367 31959690 39721329 44134810 47939535 61788734 66202215 79442658 92683101 95879070 132404430 154471835 185366202 198606645 278049303 308943670 397213290 463415505 556098606 926831010 1390246515 2780493030