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87380757545345 = 5119676631641833
BaseRepresentation
bin10011110111100011101011…
…000000111000000110000001
3102110101112000020022101121022
4103313203223000320012001
542423121242412422340
6505502055453435225
724256023426120635
oct2367435300700601
9373345006271538
1087380757545345
1125929a756938a0
129972b86a9bb15
13399ac7c35b224
141781373540dc5
15a17e925533b5
hex4f78eb038181

87380757545345 has 16 divisors (see below), whose sum is σ = 114389543215872. Its totient is φ = 63549537471360.

The previous prime is 87380757545317. The next prime is 87380757545353. The reversal of 87380757545345 is 54354575708378.

It is not a de Polignac number, because 87380757545345 - 220 = 87380756496769 is a prime.

It is a Duffinian number.

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, 52400549 + ... + 54042381.

It is an arithmetic number, because the mean of its divisors is an integer number (7149346450992).

Almost surely, 287380757545345 is an apocalyptic number.

It is an amenable number.

87380757545345 is a deficient number, since it is larger than the sum of its proper divisors (27008785670527).

87380757545345 is a wasteful number, since it uses less digits than its factorization.

87380757545345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609512.

The product of its (nonzero) digits is 1975680000, while the sum is 71.

The spelling of 87380757545345 in words is "eighty-seven trillion, three hundred eighty billion, seven hundred fifty-seven million, five hundred forty-five thousand, three hundred forty-five".

Divisors: 1 5 11 55 967663 1641833 4838315 8209165 10644293 18060163 53221465 90300815 1588741046279 7943705231395 17476151509069 87380757545345