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122885085 = 3531264269
BaseRepresentation
bin1110101001100…
…01001111011101
322120020012122110
413110301033131
5222424310320
620105504233
73021335361
oct724611735
9276205573
10122885085
1163402424
12351a2079
131c5c718b
141246b2a1
15abc55e0
hex75313dd

122885085 has 16 divisors (see below), whose sum is σ = 202959360. Its totient is φ = 63424320.

The previous prime is 122885083. The next prime is 122885107. The reversal of 122885085 is 580588221.

It is not a de Polignac number, because 122885085 - 21 = 122885083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122885083) 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, 131670 + ... + 132599.

It is an arithmetic number, because the mean of its divisors is an integer number (12684960).

Almost surely, 2122885085 is an apocalyptic number.

122885085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122885085 is a deficient number, since it is larger than the sum of its proper divisors (80074275).

122885085 is a wasteful number, since it uses less digits than its factorization.

122885085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264308.

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 122885085 is about 11085.3545274835. The cubic root of 122885085 is about 497.1640586173.

The spelling of 122885085 in words is "one hundred twenty-two million, eight hundred eighty-five thousand, eighty-five".

Divisors: 1 3 5 15 31 93 155 465 264269 792807 1321345 3964035 8192339 24577017 40961695 122885085