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122505000150 = 235213293758549
BaseRepresentation
bin111001000010111011…
…1011111010011010110
3102201012120202210200210
41302011313133103112
54001342240001100
6132140015150250
711564534214561
oct1620567372326
9381176683623
10122505000150
1147a54973885
121b8aa815386
13b724177690
145d01cd94d8
1532bed6cc50
hex1c85ddf4d6

122505000150 has 192 divisors, whose sum is σ = 347618376000. Its totient is φ = 28327864320.

The previous prime is 122505000139. The next prime is 122505000157. The reversal of 122505000150 is 51000505221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122505000157) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2063076 + ... + 2121624.

It is an arithmetic number, because the mean of its divisors is an integer number (1810512375).

Almost surely, 2122505000150 is an apocalyptic number.

122505000150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122505000150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173809188000).

122505000150 is an abundant number, since it is smaller than the sum of its proper divisors (225113375850).

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

122505000150 is a wasteful number, since it uses less digits than its factorization.

122505000150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58643 (or 58638 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

Adding to 122505000150 its reverse (51000505221), we get a palindrome (173505505371).

The spelling of 122505000150 in words is "one hundred twenty-two billion, five hundred five million, one hundred fifty", and thus it is an aban number.