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212422432 = 2519349379
BaseRepresentation
bin11001010100101…
…00111100100000
3112210201011210111
430222110330200
5413340004212
633024541104
75156363245
oct1452247440
9483634714
10212422432
11a99a8132
125b181794
1335016661
14202d75cc
15139aeea7
hexca94f20

212422432 has 24 divisors (see below), whose sum is σ = 440218800. Its totient is φ = 100620864.

The previous prime is 212422423. The next prime is 212422453. The reversal of 212422432 is 234224212.

It is a super-4 number, since 4×2124224324 (a number of 34 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174082 + ... + 175297.

It is an arithmetic number, because the mean of its divisors is an integer number (18342450).

Almost surely, 2212422432 is an apocalyptic number.

It is an amenable number.

212422432 is an abundant number, since it is smaller than the sum of its proper divisors (227796368).

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

212422432 is a wasteful number, since it uses less digits than its factorization.

212422432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349408 (or 349400 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 212422432 is about 14574.7189338251. The cubic root of 212422432 is about 596.6689784180.

Adding to 212422432 its reverse (234224212), we get a palindrome (446646644).

The spelling of 212422432 in words is "two hundred twelve million, four hundred twenty-two thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 349379 698758 1397516 2795032 5590064 6638201 11180128 13276402 26552804 53105608 106211216 212422432