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100242071 = 1971992557
BaseRepresentation
bin1011111100110…
…01001010010111
320222121211021022
411332121022113
5201130221241
613540311355
72325020636
oct576311227
9228554238
10100242071
1151647396
12296a255b
13179c9a47
14d45551d
158c0154b
hex5f99297

100242071 has 8 divisors (see below), whose sum is σ = 101296800. Its totient is φ = 99193248.

The previous prime is 100242061. The next prime is 100242083. The reversal of 100242071 is 170242001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100242071 - 218 = 99979927 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 (100242041) 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, 37925 + ... + 40481.

It is an arithmetic number, because the mean of its divisors is an integer number (12662100).

Almost surely, 2100242071 is an apocalyptic number.

100242071 is a deficient number, since it is larger than the sum of its proper divisors (1054729).

100242071 is a wasteful number, since it uses less digits than its factorization.

100242071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 100242071 is about 10012.0962340561. The cubic root of 100242071 is about 464.5331129066.

Adding to 100242071 its reverse (170242001), we get a palindrome (270484072).

The spelling of 100242071 in words is "one hundred million, two hundred forty-two thousand, seventy-one".

Divisors: 1 197 199 2557 39203 503729 508843 100242071