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128992062150 = 232527377315161
BaseRepresentation
bin111100000100010000…
…1101010101011000110
3110022221200022200211100
41320020201222223012
54103133431442100
6135131431320530
712214354303020
oct1701041525306
9408850280740
10128992062150
114a783724546
1220bbb220146
13c2191185c3
146359693010
15354e615400
hex1e0886aac6

128992062150 has 288 divisors, whose sum is σ = 412370981568. Its totient is φ = 28292198400.

The previous prime is 128992062149. The next prime is 128992062151. The reversal of 128992062150 is 51260299821.

It is a happy number.

128992062150 is a `hidden beast` number, since 12 + 8 + 9 + 9 + 2 + 0 + 621 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (128992062149) and next prime (128992062151).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 128992062096 and 128992062105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128992062151) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 8500570 + ... + 8515730.

It is an arithmetic number, because the mean of its divisors is an integer number (1431843686).

Almost surely, 2128992062150 is an apocalyptic number.

128992062150 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 128992062150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206185490784).

128992062150 is an abundant number, since it is smaller than the sum of its proper divisors (283378919418).

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

128992062150 is a wasteful number, since it uses less digits than its factorization.

128992062150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15296 (or 15288 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 128992062150 in words is "one hundred twenty-eight billion, nine hundred ninety-two million, sixty-two thousand, one hundred fifty".