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101930453 = 1714940241
BaseRepresentation
bin1100001001101…
…01010111010101
321002210121021222
412010311113111
5202043233303
614040420125
72345252222
oct604652725
9232717258
10101930453
115259a949
122a177645
131816b3a1
14d774949
158e36938
hex61355d5

101930453 has 8 divisors (see below), whose sum is σ = 108653400. Its totient is φ = 95288320.

The previous prime is 101930431. The next prime is 101930467. The reversal of 101930453 is 354039101.

It can be written as a sum of positive squares in 4 ways, for example, as 465124 + 101465329 = 682^2 + 10073^2 .

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 101930453 - 28 = 101930197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101930483) 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, 17588 + ... + 22653.

It is an arithmetic number, because the mean of its divisors is an integer number (13581675).

Almost surely, 2101930453 is an apocalyptic number.

It is an amenable number.

101930453 is a deficient number, since it is larger than the sum of its proper divisors (6722947).

101930453 is a wasteful number, since it uses less digits than its factorization.

101930453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40407.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 101930453 is about 10096.0612617000. The cubic root of 101930453 is about 467.1266570423.

Adding to 101930453 its reverse (354039101), we get a palindrome (455969554).

The spelling of 101930453 in words is "one hundred one million, nine hundred thirty thousand, four hundred fifty-three".

Divisors: 1 17 149 2533 40241 684097 5995909 101930453