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212351141450 = 25271514017997
BaseRepresentation
bin1100010111000100011…
…1010100011001001010
3202022010010010200100202
43011301013110121022
511434343343011300
6241315221532202
721225154630520
oct3056107243112
9668103120322
10212351141450
118206a757618
12351a3b74062
13170421495b6
14a3c65c6310
1557cc956ad5
hex31711d464a

212351141450 has 48 divisors (see below), whose sum is σ = 454387357824. Its totient is φ = 72323928000.

The previous prime is 212351141447. The next prime is 212351141459. The reversal of 212351141450 is 54141153212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212351141459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1956149 + ... + 2061848.

It is an arithmetic number, because the mean of its divisors is an integer number (9466403288).

Almost surely, 2212351141450 is an apocalyptic number.

212351141450 is an abundant number, since it is smaller than the sum of its proper divisors (242036216374).

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

212351141450 is a wasteful number, since it uses less digits than its factorization.

212351141450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018167 (or 4018162 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 212351141450 its reverse (54141153212), we get a palindrome (266492294662).

The spelling of 212351141450 in words is "two hundred twelve billion, three hundred fifty-one million, one hundred forty-one thousand, four hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 151 175 302 350 755 1057 1510 2114 3775 5285 7550 10570 26425 52850 4017997 8035994 20089985 28125979 40179970 56251958 100449925 140629895 200899850 281259790 606717547 703149475 1213435094 1406298950 3033587735 4247022829 6067175470 8494045658 15167938675 21235114145 30335877350 42470228290 106175570725 212351141450