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87668693446 = 2227193102849
BaseRepresentation
bin101000110100101110…
…1100001100111000110
322101021210010001202011
41101221131201213012
52414021141142241
6104135140204434
76222340412305
oct1215135414706
9271253101664
1087668693446
11341a8767a64
1214ba809971a
138361b38549
14435944043c
152431874281
hex14697619c6

87668693446 has 8 divisors (see below), whose sum is σ = 132082349400. Its totient is φ = 43641243648.

The previous prime is 87668693443. The next prime is 87668693449. The reversal of 87668693446 is 64439686678.

It is an interprime number because it is at equal distance from previous prime (87668693443) and next prime (87668693449).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87668693443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96550971 + ... + 96551878.

It is an arithmetic number, because the mean of its divisors is an integer number (16510293675).

Almost surely, 287668693446 is an apocalyptic number.

87668693446 is a deficient number, since it is larger than the sum of its proper divisors (44413655954).

87668693446 is a wasteful number, since it uses less digits than its factorization.

87668693446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193103078.

The product of its digits is 250822656, while the sum is 67.

The spelling of 87668693446 in words is "eighty-seven billion, six hundred sixty-eight million, six hundred ninety-three thousand, four hundred forty-six".

Divisors: 1 2 227 454 193102849 386205698 43834346723 87668693446