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13020777 = 337116263
BaseRepresentation
bin110001101010…
…111001101001
3220111112011000
4301222321221
511313131102
61143025213
7215450310
oct61527151
926445130
1013020777
117393780
12443b209
13290b803
141a2d277
15122301c
hexc6ae69

13020777 has 32 divisors (see below), whose sum is σ = 24053760. Its totient is φ = 6762960.

The previous prime is 13020773. The next prime is 13020779. The reversal of 13020777 is 77702031.

It is not a de Polignac number, because 13020777 - 22 = 13020773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13020777.

It is not an unprimeable number, because it can be changed into a prime (13020773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1053 + ... + 5210.

It is an arithmetic number, because the mean of its divisors is an integer number (751680).

Almost surely, 213020777 is an apocalyptic number.

It is an amenable number.

13020777 is a deficient number, since it is larger than the sum of its proper divisors (11032983).

13020777 is a wasteful number, since it uses less digits than its factorization.

13020777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6290 (or 6284 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 27.

The square root of 13020777 is about 3608.4313766511. The cubic root of 13020777 is about 235.2586679449.

The spelling of 13020777 in words is "thirteen million, twenty thousand, seven hundred seventy-seven".

Divisors: 1 3 7 9 11 21 27 33 63 77 99 189 231 297 693 2079 6263 18789 43841 56367 68893 131523 169101 206679 394569 482251 620037 1183707 1446753 1860111 4340259 13020777