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87738207661370 = 25719312128018619
BaseRepresentation
bin10011111100110000100100…
…101100110110110100111010
3102111122200122112202200212102
4103330300210230312310322
543000000322130130440
6510334213130143402
724323606402020040
oct2374604454666472
9374580575680772
1087738207661370
1125a57623992622
129a10304281b62
1339c58a6570216
1417947a261c390
15a22413683b15
hex4fcc24b36d3a

87738207661370 has 64 divisors (see below), whose sum is σ = 196118196019200. Its totient is φ = 27579121289280.

The previous prime is 87738207661333. The next prime is 87738207661411. The reversal of 87738207661370 is 7316670283778.

It is a junction number, because it is equal to n+sod(n) for n = 87738207661297 and 87738207661306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1063968080 + ... + 1064050539.

It is an arithmetic number, because the mean of its divisors is an integer number (3064346812800).

Almost surely, 287738207661370 is an apocalyptic number.

87738207661370 is an abundant number, since it is smaller than the sum of its proper divisors (108379988357830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87738207661370 is a wasteful number, since it uses less digits than its factorization.

87738207661370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128018683.

The product of its (nonzero) digits is 99574272, while the sum is 65.

The spelling of 87738207661370 in words is "eighty-seven trillion, seven hundred thirty-eight billion, two hundred seven million, six hundred sixty-one thousand, three hundred seventy".

Divisors: 1 2 5 7 10 14 19 31 35 38 62 70 95 133 155 190 217 266 310 434 589 665 1085 1178 1330 2170 2945 4123 5890 8246 20615 41230 2128018619 4256037238 10640093095 14896130333 21280186190 29792260666 40432353761 65968577189 74480651665 80864707522 131937154378 148961303330 202161768805 283026476327 329842885945 404323537610 461780040323 566052952654 659685771890 923560080646 1253402966591 1415132381635 2308900201615 2506805933182 2830264763270 4617800403230 6267014832955 8773820766137 12534029665910 17547641532274 43869103830685 87738207661370