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2780135030 = 252332414951
BaseRepresentation
bin1010010110110101…
…0111111001110110
321011202022111022002
42211231113321312
521143203310110
61135511535302
7125615520641
oct24555277166
97152274262
102780135030
1111a734a662
1265708a532
13353c9341a
141c5332a58
15114113aa5
hexa5b57e76

2780135030 has 32 divisors (see below), whose sum is σ = 5047593408. Its totient is φ = 1102464000.

The previous prime is 2780135021. The next prime is 2780135077. The reversal of 2780135030 is 305310872.

It is a junction number, because it is equal to n+sod(n) for n = 2780134984 and 2780135002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559055 + ... + 564005.

It is an arithmetic number, because the mean of its divisors is an integer number (157737294).

Almost surely, 22780135030 is an apocalyptic number.

2780135030 is a deficient number, since it is larger than the sum of its proper divisors (2267458378).

2780135030 is a wasteful number, since it uses less digits than its factorization.

2780135030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2780135030 is about 52726.9857852694. The cubic root of 2780135030 is about 1406.1186331146.

The spelling of 2780135030 in words is "two billion, seven hundred eighty million, one hundred thirty-five thousand, thirty".

Divisors: 1 2 5 10 233 241 466 482 1165 1205 2330 2410 4951 9902 24755 49510 56153 112306 280765 561530 1153583 1193191 2307166 2386382 5767915 5965955 11535830 11931910 278013503 556027006 1390067515 2780135030