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8122045 = 571137167
BaseRepresentation
bin11110111110111010111101
3120021122100111
4132332322331
54034401140
6450030021
7126015301
oct36767275
916248314
108122045
114648238
122878311
1318b4b59
141115d01
15aa67ea
hex7beebd

8122045 has 16 divisors (see below), whose sum is σ = 10015488. Its totient is φ = 6321280.

The previous prime is 8122043. The next prime is 8122057. The reversal of 8122045 is 5402218.

It is not a de Polignac number, because 8122045 - 21 = 8122043 is a prime.

It is a super-2 number, since 2×81220452 = 131935229964050, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8122043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48552 + ... + 48718.

It is an arithmetic number, because the mean of its divisors is an integer number (625968).

Almost surely, 28122045 is an apocalyptic number.

It is an amenable number.

8122045 is a deficient number, since it is larger than the sum of its proper divisors (1893443).

8122045 is a wasteful number, since it uses less digits than its factorization.

8122045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 8122045 is about 2849.9201743207. The cubic root of 8122045 is about 201.0119131904.

The spelling of 8122045 in words is "eight million, one hundred twenty-two thousand, forty-five".

Divisors: 1 5 71 137 167 355 685 835 9727 11857 22879 48635 59285 114395 1624409 8122045