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87871466400 = 2535236613111
BaseRepresentation
bin101000111010110001…
…1000010101110100000
322101210220122222221120
41101311203002232200
52414430043411100
6104211222252240
76230352066144
oct1216543025640
9271726588846
1087871466400
11342a2174313
1215043b87080
138394b53a43
144378345224
15244457a0a0
hex14758c2ba0

87871466400 has 72 divisors (see below), whose sum is σ = 286021630944. Its totient is φ = 23432390400.

The previous prime is 87871466369. The next prime is 87871466401. The reversal of 87871466400 is 466417878.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87871466401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18304156 + ... + 18308955.

It is an arithmetic number, because the mean of its divisors is an integer number (3972522652).

Almost surely, 287871466400 is an apocalyptic number.

87871466400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87871466400 is an abundant number, since it is smaller than the sum of its proper divisors (198150164544).

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

87871466400 is a wasteful number, since it uses less digits than its factorization.

87871466400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36613134 (or 36613121 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 87871466400 in words is "eighty-seven billion, eight hundred seventy-one million, four hundred sixty-six thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 150 160 200 240 300 400 480 600 800 1200 2400 36613111 73226222 109839333 146452444 183065555 219678666 292904888 366131110 439357332 549196665 585809776 732262220 878714664 915327775 1098393330 1171619552 1464524440 1757429328 1830655550 2196786660 2745983325 2929048880 3514858656 3661311100 4393573320 5491966650 5858097760 7322622200 8787146640 10983933300 14645244400 17574293280 21967866600 29290488800 43935733200 87871466400