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75407642000 = 245383944939
BaseRepresentation
bin100011000111010100…
…1010100110110010000
321012122021210010010122
41012032221110312100
52213413324021000
654350343245412
75306446244525
oct1061651246620
9235567703118
1075407642000
1129a86714599
1212745a49868
137159892012
143914cab14c
151e6523a085
hex118ea54d90

75407642000 has 80 divisors (see below), whose sum is σ = 182557065600. Its totient is φ = 30126435200.

The previous prime is 75407641979. The next prime is 75407642027. The reversal of 75407642000 is 24670457.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1655531 + ... + 1700469.

It is an arithmetic number, because the mean of its divisors is an integer number (2281963320).

Almost surely, 275407642000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75407642000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91278532800).

75407642000 is an abundant number, since it is smaller than the sum of its proper divisors (107149423600).

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

75407642000 is a wasteful number, since it uses less digits than its factorization.

75407642000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45801 (or 45785 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The spelling of 75407642000 in words is "seventy-five billion, four hundred seven million, six hundred forty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 839 1000 1678 2000 3356 4195 6712 8390 13424 16780 20975 33560 41950 44939 67120 83900 89878 104875 167800 179756 209750 224695 335600 359512 419500 449390 719024 839000 898780 1123475 1678000 1797560 2246950 3595120 4493900 5617375 8987800 11234750 17975600 22469500 37703821 44939000 75407642 89878000 150815284 188519105 301630568 377038210 603261136 754076420 942595525 1508152840 1885191050 3016305680 3770382100 4712977625 7540764200 9425955250 15081528400 18851910500 37703821000 75407642000