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87696005464 = 2389193638179
BaseRepresentation
bin101000110101100010…
…1101101100101011000
322101100200111122210101
41101223011231211120
52414100134133324
6104141553425144
76223121514214
oct1215305554530
9271320448711
1087696005464
1134212121981
1214bb526b1b4
1383676abbc2
14435cd0d944
152433e6b944
hex146b16d958

87696005464 has 32 divisors (see below), whose sum is σ = 167139342000. Its totient is φ = 43130621952.

The previous prime is 87696005461. The next prime is 87696005473. The reversal of 87696005464 is 46450069678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87696005461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181674 + ... + 456505.

Almost surely, 287696005464 is an apocalyptic number.

It is an amenable number.

87696005464 is a deficient number, since it is larger than the sum of its proper divisors (79443336536).

87696005464 is a wasteful number, since it uses less digits than its factorization.

87696005464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638467 (or 638463 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 87696005464 in words is "eighty-seven billion, six hundred ninety-six million, five thousand, four hundred sixty-four".

Divisors: 1 2 4 8 89 178 193 356 386 712 772 1544 17177 34354 68708 137416 638179 1276358 2552716 5105432 56797931 113595862 123168547 227191724 246337094 454383448 492674188 985348376 10962000683 21924001366 43848002732 87696005464