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215341412 = 221113376471
BaseRepresentation
bin11001101010111…
…01100101100100
3120000012110212212
430311131211210
5420111411122
633211302552
75223241346
oct1465354544
9500173785
10215341412
11100611210
126014aa58
13357c9170
1420857296
1513d89ce2
hexcd5d964

215341412 has 24 divisors (see below), whose sum is σ = 442731072. Its totient is φ = 90352800.

The previous prime is 215341403. The next prime is 215341447. The reversal of 215341412 is 214143512.

215341412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 187664 + ... + 188807.

It is an arithmetic number, because the mean of its divisors is an integer number (18447128).

Almost surely, 2215341412 is an apocalyptic number.

215341412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215341412 is an abundant number, since it is smaller than the sum of its proper divisors (227389660).

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

215341412 is a wasteful number, since it uses less digits than its factorization.

215341412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376499 (or 376497 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 215341412 is about 14674.5157330659. The cubic root of 215341412 is about 599.3895754767.

Adding to 215341412 its reverse (214143512), we get a palindrome (429484924).

The spelling of 215341412 in words is "two hundred fifteen million, three hundred forty-one thousand, four hundred twelve".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 376471 752942 1505884 4141181 4894123 8282362 9788246 16564724 19576492 53835353 107670706 215341412