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212198038 = 21331263273
BaseRepresentation
bin11001010010111…
…10001010010110
3112210021202222121
430221132022112
5413310314123
633020050154
75154440113
oct1451361226
9483252877
10212198038
11a9864588
125b09395a
1334c68490
142027990a
151396875d
hexca5e296

212198038 has 16 divisors (see below), whose sum is σ = 353840256. Its totient is φ = 94777920.

The previous prime is 212198027. The next prime is 212198057. The reversal of 212198038 is 830891212.

212198038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212197994 and 212198012.

It is a congruent number.

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, 130831 + ... + 132442.

It is an arithmetic number, because the mean of its divisors is an integer number (22115016).

Almost surely, 2212198038 is an apocalyptic number.

212198038 is a deficient number, since it is larger than the sum of its proper divisors (141642218).

212198038 is a wasteful number, since it uses less digits than its factorization.

212198038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263319.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 212198038 is about 14567.0188439502. The cubic root of 212198038 is about 596.4588058387.

The spelling of 212198038 in words is "two hundred twelve million, one hundred ninety-eight thousand, thirty-eight".

Divisors: 1 2 13 26 31 62 403 806 263273 526546 3422549 6845098 8161463 16322926 106099019 212198038