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100740143 = 714391449
BaseRepresentation
bin1100000000100…
…10110000101111
321000120010111102
412000102300233
5201242141033
613555113315
72332164020
oct600226057
9230503442
10100740143
1151957619
12298a283b
1317b4266a
14d544c47
158c9dde8
hex6012c2f

100740143 has 4 divisors (see below), whose sum is σ = 115131600. Its totient is φ = 86348688.

The previous prime is 100740131. The next prime is 100740163. The reversal of 100740143 is 341047001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100740143 - 28 = 100739887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100740163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7195718 + ... + 7195731.

It is an arithmetic number, because the mean of its divisors is an integer number (28782900).

Almost surely, 2100740143 is an apocalyptic number.

100740143 is a deficient number, since it is larger than the sum of its proper divisors (14391457).

100740143 is an equidigital number, since it uses as much as digits as its factorization.

100740143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14391456.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 100740143 is about 10036.9389257881. The cubic root of 100740143 is about 465.3012161755.

Adding to 100740143 its reverse (341047001), we get a palindrome (441787144).

The spelling of 100740143 in words is "one hundred million, seven hundred forty thousand, one hundred forty-three".

Divisors: 1 7 14391449 100740143