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75489560020 = 2257569947647
BaseRepresentation
bin100011001001110000…
…1110100010111010100
321012211222220222112101
41012103201310113110
52214100311410040
654402431131444
75311462446550
oct1062341642724
9235758828471
1075489560020
112a018985836
1212769373b84
137170844414
143921b12860
151e6c51c09a
hex11938745d4

75489560020 has 48 divisors (see below), whose sum is σ = 181493544960. Its totient is φ = 25836620544.

The previous prime is 75489559961. The next prime is 75489560051. The reversal of 75489560020 is 2006598457.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394164 + ... + 553483.

It is an arithmetic number, because the mean of its divisors is an integer number (3781115520).

Almost surely, 275489560020 is an apocalyptic number.

75489560020 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

75489560020 is an abundant number, since it is smaller than the sum of its proper divisors (106003984940).

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

75489560020 is a wasteful number, since it uses less digits than its factorization.

75489560020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948232 (or 948230 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 75489560020 in words is "seventy-five billion, four hundred eighty-nine million, five hundred sixty thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 569 1138 2276 2845 3983 5690 7966 11380 15932 19915 39830 79660 947647 1895294 3790588 4738235 6633529 9476470 13267058 18952940 26534116 33167645 66335290 132670580 539211143 1078422286 2156844572 2696055715 3774478001 5392111430 7548956002 10784222860 15097912004 18872390005 37744780010 75489560020