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143214987442 = 21719673308881
BaseRepresentation
bin1000010101100001000…
…1110100100010110010
3111200122220021011102011
42011120101310202302
54321301014044232
6145443030113134
713230000210352
oct2053021644262
9450586234364
10143214987442
115581214385a
122390a4ab7aa
131067497a527
146d085d8b62
153ad30d0547
hex21584748b2

143214987442 has 32 divisors (see below), whose sum is σ = 243004294080. Its totient is φ = 62895191040.

The previous prime is 143214987427. The next prime is 143214987451. The reversal of 143214987442 is 244789412341.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1611159 + ... + 1697722.

It is an arithmetic number, because the mean of its divisors is an integer number (7593884190).

Almost surely, 2143214987442 is an apocalyptic number.

143214987442 is a deficient number, since it is larger than the sum of its proper divisors (99789306638).

143214987442 is a wasteful number, since it uses less digits than its factorization.

143214987442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308986.

The product of its digits is 1548288, while the sum is 49.

The spelling of 143214987442 in words is "one hundred forty-three billion, two hundred fourteen million, nine hundred eighty-seven thousand, four hundred forty-two".

Divisors: 1 2 17 19 34 38 67 134 323 646 1139 1273 2278 2546 21641 43282 3308881 6617762 56250977 62868739 112501954 125737478 221695027 443390054 1068768563 2137537126 3768815459 4212205513 7537630918 8424411026 71607493721 143214987442