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87868373476 = 221348772
BaseRepresentation
bin101000111010101011…
…1001111100111100100
322101210200211212020211
41101311113033213210
52414423300422401
6104211032105204
76230313564652
oct1216527174744
9271720755224
1087868373476
11342a0451584
1215042b35204
138394310000
144377b7bdd2
152444168951
hex14755cf9e4

87868373476 has 45 divisors (see below), whose sum is σ = 166773506109. Its totient is φ = 40508391456.

The previous prime is 87868373473. The next prime is 87868373507. The reversal of 87868373476 is 67437386878.

The square root of 87868373476 is 296426.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 75685512100 + 12182861376 = 275110^2 + 110376^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87868373471) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 100191550 + ... + 100192426.

Almost surely, 287868373476 is an apocalyptic number.

87868373476 is the 296426-th square number.

It is an amenable number.

87868373476 is a deficient number, since it is larger than the sum of its proper divisors (78905132633).

87868373476 is an frugal number, since it uses more digits than its factorization.

87868373476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810 (or 892 counting only the distinct ones).

The product of its digits is 227598336, while the sum is 67.

The spelling of 87868373476 in words is "eighty-seven billion, eight hundred sixty-eight million, three hundred seventy-three thousand, four hundred seventy-six".

Divisors: 1 2 4 13 26 52 169 338 676 877 1754 2197 3508 4394 8788 11401 22802 28561 45604 57122 114244 148213 296426 592852 769129 1538258 1926769 3076516 3853538 7707076 9998677 19997354 25047997 39994708 50095994 100191988 129982801 259965602 519931204 1689776413 3379552826 6759105652 21967093369 43934186738 87868373476