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122888808 = 233271941313
BaseRepresentation
bin1110101001100…
…10001001101000
322120020101202100
413110302021220
5222424420213
620105533400
73021352260
oct724621150
9276211670
10122888808
11634051a9
12351a4260
131c5c8a93
141246c7a0
15abc6773
hex7532268

122888808 has 192 divisors, whose sum is σ = 411465600. Its totient is φ = 32348160.

The previous prime is 122888807. The next prime is 122888809. The reversal of 122888808 is 808888221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122888807) and next prime (122888809).

It is not an unprimeable number, because it can be changed into a prime (122888807) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 392460 + ... + 392772.

It is an arithmetic number, because the mean of its divisors is an integer number (2143050).

Almost surely, 2122888808 is an apocalyptic number.

122888808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122888808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205732800).

122888808 is an abundant number, since it is smaller than the sum of its proper divisors (288576792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122888808 is a wasteful number, since it uses less digits than its factorization.

122888808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 45.

The square root of 122888808 is about 11085.5224504757. The cubic root of 122888808 is about 497.1690793597.

The spelling of 122888808 in words is "one hundred twenty-two million, eight hundred eighty-eight thousand, eight hundred eight".