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168986986802 = 21391913182549
BaseRepresentation
bin1001110101100001101…
…0001100100100110010
3121011011222211101020222
42131120122030210302
510232041132034202
6205344225333042
715131440454624
oct2353032144462
9534158741228
10168986986802
1165737826387
1228901497182
1312c211119aa
1482712dcc14
1545e09484a2
hex275868c932

168986986802 has 16 divisors (see below), whose sum is σ = 256640832000. Its totient is φ = 83446408560.

The previous prime is 168986986759. The next prime is 168986986837. The reversal of 168986986802 is 208689689861.

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 7 ways as a sum of consecutive naturals, for example, 1538177 + ... + 1644372.

It is an arithmetic number, because the mean of its divisors is an integer number (16040052000).

Almost surely, 2168986986802 is an apocalyptic number.

168986986802 is a deficient number, since it is larger than the sum of its proper divisors (87653845198).

168986986802 is a wasteful number, since it uses less digits than its factorization.

168986986802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182881.

The product of its (nonzero) digits is 143327232, while the sum is 71.

The spelling of 168986986802 in words is "one hundred sixty-eight billion, nine hundred eighty-six million, nine hundred eighty-six thousand, eight hundred two".

Divisors: 1 2 139 191 278 382 26549 53098 3182549 6365098 442374311 607866859 884748622 1215733718 84493493401 168986986802