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128830401572 = 221715791199851
BaseRepresentation
bin111011111111011100…
…0111110110000100100
3110022112102010111012112
41313332320332300210
54102321040322242
6135103414340152
712210352226255
oct1677670766044
9408472114175
10128830401572
114a700448564
1220b7505a658
13c1c1796062
146342010b2c
153540330c82
hex1dfee3ec24

128830401572 has 24 divisors (see below), whose sum is σ = 238866536160. Its totient is φ = 60587625600.

The previous prime is 128830401571. The next prime is 128830401577. The reversal of 128830401572 is 275104038821.

It is not an unprimeable number, because it can be changed into a prime (128830401571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492554 + ... + 707297.

It is an arithmetic number, because the mean of its divisors is an integer number (9952772340).

Almost surely, 2128830401572 is an apocalyptic number.

It is an amenable number.

128830401572 is a deficient number, since it is larger than the sum of its proper divisors (110036134588).

128830401572 is a wasteful number, since it uses less digits than its factorization.

128830401572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201451 (or 1201449 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 128830401572 in words is "one hundred twenty-eight billion, eight hundred thirty million, four hundred one thousand, five hundred seventy-two".

Divisors: 1 2 4 17 34 68 1579 3158 6316 26843 53686 107372 1199851 2399702 4799404 20397467 40794934 81589868 1894564729 3789129458 7578258916 32207600393 64415200786 128830401572