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86830161550 = 25211994115881
BaseRepresentation
bin101000011011101111…
…0110001111010001110
322022010100021020020021
41100313132301322032
52410312010132200
6103520023412354
76162506124016
oct1206736617216
9268110236207
1086830161550
11339083a95a0
12149b32b40ba
13825a1b4122
1442b9d24c46
1523d2e3a41a
hex14377b1e8e

86830161550 has 48 divisors (see below), whose sum is σ = 176215109904. Its totient is φ = 31569440000.

The previous prime is 86830161541. The next prime is 86830161553. The reversal of 86830161550 is 5516103868.

It is a junction number, because it is equal to n+sod(n) for n = 86830161497 and 86830161506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86830161553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5459610 + ... + 5475490.

It is an arithmetic number, because the mean of its divisors is an integer number (3671148123).

Almost surely, 286830161550 is an apocalyptic number.

86830161550 is an abundant number, since it is smaller than the sum of its proper divisors (89384948354).

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

86830161550 is a wasteful number, since it uses less digits than its factorization.

86830161550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25845 (or 25840 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 86830161550 in words is "eighty-six billion, eight hundred thirty million, one hundred sixty-one thousand, five hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 9941 15881 19882 31762 49705 79405 99410 109351 158810 174691 218702 248525 349382 397025 497050 546755 794050 873455 1093510 1746910 2733775 4367275 5467550 8734550 157873021 315746042 789365105 1578730210 1736603231 3473206462 3946825525 7893651050 8683016155 17366032310 43415080775 86830161550