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8008065 = 365133
BaseRepresentation
bin11110100011000110000001
3120001212000000
4132203012001
54022224230
6443350213
7125032062
oct36430601
916055000
108008065
11457a63a
122822369
131875000
1410c6569
15a82b60
hex7a3181

8008065 has 56 divisors (see below), whose sum is σ = 15608040. Its totient is φ = 3942432.

The previous prime is 8008009. The next prime is 8008081. The reversal of 8008065 is 5608008.

It can be written as a sum of positive squares in 4 ways, for example, as 2985984 + 5022081 = 1728^2 + 2241^2 .

It is not a de Polignac number, because 8008065 - 28 = 8007809 is a prime.

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

8008065 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 615999 + ... + 616011.

It is an arithmetic number, because the mean of its divisors is an integer number (278715).

Almost surely, 28008065 is an apocalyptic number.

It is an amenable number.

8008065 is a deficient number, since it is larger than the sum of its proper divisors (7599975).

8008065 is an frugal number, since it uses more digits than its factorization.

8008065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 8008065 is about 2829.8524696528. The cubic root of 8008065 is about 200.0671857612.

The spelling of 8008065 in words is "eight million, eight thousand, sixty-five".

Divisors: 1 3 5 9 13 15 27 39 45 65 81 117 135 169 195 243 351 405 507 585 729 845 1053 1215 1521 1755 2197 2535 3159 3645 4563 5265 6591 7605 9477 10985 13689 15795 19773 22815 32955 41067 47385 59319 68445 98865 123201 177957 205335 296595 533871 616005 889785 1601613 2669355 8008065