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87485545884 = 223115571189891
BaseRepresentation
bin101000101111010001…
…0110111110110011100
322100211000111012112010
41101132202313312130
52413132244432014
6104105034511220
76214654604352
oct1213642676634
9270730435463
1087485545884
1134114345540
1214b56895510
138332c01ac9
14433cda77d2
152420748359
hex145e8b7d9c

87485545884 has 48 divisors (see below), whose sum is σ = 223090471296. Its totient is φ = 26463153600.

The previous prime is 87485545859. The next prime is 87485545909. The reversal of 87485545884 is 48854558478.

It is an interprime number because it is at equal distance from previous prime (87485545859) and next prime (87485545909).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent 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, 521422 + ... + 668469.

It is an arithmetic number, because the mean of its divisors is an integer number (4647718152).

Almost surely, 287485545884 is an apocalyptic number.

It is an amenable number.

87485545884 is an abundant number, since it is smaller than the sum of its proper divisors (135604925412).

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

87485545884 is a wasteful number, since it uses less digits than its factorization.

87485545884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190466 (or 1190464 counting only the distinct ones).

The product of its digits is 229376000, while the sum is 66.

The spelling of 87485545884 in words is "eighty-seven billion, four hundred eighty-five million, five hundred forty-five thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 557 1114 1671 2228 3342 6127 6684 12254 18381 24508 36762 73524 1189891 2379782 3569673 4759564 7139346 13088801 14278692 26177602 39266403 52355204 78532806 157065612 662769287 1325538574 1988307861 2651077148 3976615722 7290462157 7953231444 14580924314 21871386471 29161848628 43742772942 87485545884