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86688286894 = 21111821333337
BaseRepresentation
bin101000010111100000…
…1100100100010101110
322021202110022020210101
41100233001210202232
52410014200140034
6103453554501314
76156134165206
oct1205701444256
9267673266711
1086688286894
1133845307010
121497389483a
13823699b721
1442a5153406
1523c5763514
hex142f0648ae

86688286894 has 16 divisors (see below), whose sum is σ = 141865986096. Its totient is φ = 39400315200.

The previous prime is 86688286849. The next prime is 86688286907. The reversal of 86688286894 is 49868288668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93394 + ... + 426730.

It is an arithmetic number, because the mean of its divisors is an integer number (8866624131).

Almost surely, 286688286894 is an apocalyptic number.

86688286894 is a deficient number, since it is larger than the sum of its proper divisors (55177699202).

86688286894 is a wasteful number, since it uses less digits than its factorization.

86688286894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345171.

The product of its digits is 509607936, while the sum is 73.

The spelling of 86688286894 in words is "eighty-six billion, six hundred eighty-eight million, two hundred eighty-six thousand, eight hundred ninety-four".

Divisors: 1 2 11 22 11821 23642 130031 260062 333337 666674 3666707 7333414 3940376677 7880753354 43344143447 86688286894