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215230032512 = 2711198045381
BaseRepresentation
bin1100100001110010110…
…1011010101010000000
3202120112202021111110122
43020130231122222000
512011242342020022
6242513022315412
721356413043105
oct3103455325200
9676482244418
10215230032512
1183307819030
1235868128b68
13173b0709231
14a5baaa4aac
1558ea576742
hex321cb5aa80

215230032512 has 64 divisors (see below), whose sum is σ = 492377378400. Its totient is φ = 92682777600.

The previous prime is 215230032503. The next prime is 215230032541.

It is a happy number.

215230032512 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3995939 + ... + 4049442.

Almost surely, 2215230032512 is an apocalyptic number.

215230032512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215230032512 is an abundant number, since it is smaller than the sum of its proper divisors (277147345888).

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

215230032512 is a wasteful number, since it uses less digits than its factorization.

215230032512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8045425 (or 8045413 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

It can be divided in two parts, 2152300 and 32512, that added together give a palindrome (2184812).

The spelling of 215230032512 in words is "two hundred fifteen billion, two hundred thirty million, thirty-two thousand, five hundred twelve".

Divisors: 1 2 4 8 11 16 19 22 32 38 44 64 76 88 128 152 176 209 304 352 418 608 704 836 1216 1408 1672 2432 3344 6688 13376 26752 8045381 16090762 32181524 64363048 88499191 128726096 152862239 176998382 257452192 305724478 353996764 514904384 611448956 707993528 1029808768 1222897912 1415987056 1681484629 2445795824 2831974112 3362969258 4891591648 5663948224 6725938516 9783183296 11327896448 13451877032 19566366592 26903754064 53807508128 107615016256 215230032512