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214646872 = 231110212389
BaseRepresentation
bin11001100101101…
…00000001011000
3112221220012011011
430302310001120
5414422144442
633144343304
75214316426
oct1462640130
9487805134
10214646872
11100187410
125ba74b34
1335614cab
1420716116
1513c9e117
hexccb4058

214646872 has 32 divisors (see below), whose sum is σ = 439664400. Its totient is φ = 97430400.

The previous prime is 214646869. The next prime is 214646911. The reversal of 214646872 is 278646412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88654 + ... + 91042.

Almost surely, 2214646872 is an apocalyptic number.

214646872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

214646872 is an abundant number, since it is smaller than the sum of its proper divisors (225017528).

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

214646872 is a wasteful number, since it uses less digits than its factorization.

214646872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427 (or 3423 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 214646872 is about 14650.8317852605. The cubic root of 214646872 is about 598.7444783117.

It can be divided in two parts, 21464687 and 2, that added together give a square (21464689 = 46332).

The spelling of 214646872 in words is "two hundred fourteen million, six hundred forty-six thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 11 22 44 88 1021 2042 2389 4084 4778 8168 9556 11231 19112 22462 26279 44924 52558 89848 105116 210232 2439169 4878338 9756676 19513352 26830859 53661718 107323436 214646872