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143802011138 = 2197947902069
BaseRepresentation
bin1000010111101101000…
…1001000111000000010
3111202011210212001112112
42011323101020320002
54324001303324023
6150021200055322
713250355632612
oct2057321107002
9452153761475
10143802011138
1155a93539405
1223a53004542
1310739481926
146d62564a42
153b198d8478
hex217b448e02

143802011138 has 16 divisors (see below), whose sum is σ = 229929936000. Its totient is φ = 67254503472.

The previous prime is 143802011137. The next prime is 143802011147. The reversal of 143802011138 is 831110208341.

It is not an unprimeable number, because it can be changed into a prime (143802011137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23948033 + ... + 23954036.

It is an arithmetic number, because the mean of its divisors is an integer number (14370621000).

Almost surely, 2143802011138 is an apocalyptic number.

143802011138 is a deficient number, since it is larger than the sum of its proper divisors (86127924862).

143802011138 is a wasteful number, since it uses less digits than its factorization.

143802011138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47902169.

The product of its (nonzero) digits is 4608, while the sum is 32.

Adding to 143802011138 its reverse (831110208341), we get a palindrome (974912219479).

The spelling of 143802011138 in words is "one hundred forty-three billion, eight hundred two million, eleven thousand, one hundred thirty-eight".

Divisors: 1 2 19 38 79 158 1501 3002 47902069 95804138 910139311 1820278622 3784263451 7568526902 71901005569 143802011138