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86490861245 = 5211721111369
BaseRepresentation
bin101000010001101000…
…0011100111010111101
322021020200210222201022
41100203100130322331
52404113130024440
6103422223153525
76151216122215
oct1204320347275
9267220728638
1086490861245
1133753922218
12149197458a5
138204b06109
144286c41245
1523b3266cb5
hex142341cebd

86490861245 has 16 divisors (see below), whose sum is σ = 104304559680. Its totient is φ = 68849155200.

The previous prime is 86490861217. The next prime is 86490861253. The reversal of 86490861245 is 54216809468.

It is not a de Polignac number, because 86490861245 - 210 = 86490860221 is a prime.

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, 7601921 + ... + 7613289.

It is an arithmetic number, because the mean of its divisors is an integer number (6519034980).

Almost surely, 286490861245 is an apocalyptic number.

It is an amenable number.

86490861245 is a deficient number, since it is larger than the sum of its proper divisors (17813698435).

86490861245 is a wasteful number, since it uses less digits than its factorization.

86490861245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18796.

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 86490861245 in words is "eighty-six billion, four hundred ninety million, eight hundred sixty-one thousand, two hundred forty-five".

Divisors: 1 5 211 1055 7211 11369 36055 56845 1521521 2398859 7607605 11994295 81981859 409909295 17298172249 86490861245