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101030999 = 1913140591
BaseRepresentation
bin1100000010110…
…01110001010111
321001002220110212
412001121301113
5201330442444
614005240035
72334515006
oct601316127
9231086425
10101030999
11520360a3
1229a0301b
1317c14b74
14d5bcc3d
158d0a19e
hex6059c57

101030999 has 8 divisors (see below), whose sum is σ = 107162880. Its totient is φ = 94980600.

The previous prime is 101030981. The next prime is 101031031. The reversal of 101030999 is 999030101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101030999 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 (101030939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17807 + ... + 22784.

It is an arithmetic number, because the mean of its divisors is an integer number (13395360).

Almost surely, 2101030999 is an apocalyptic number.

101030999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

101030999 is a deficient number, since it is larger than the sum of its proper divisors (6131881).

101030999 is a wasteful number, since it uses less digits than its factorization.

101030999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40741.

The product of its (nonzero) digits is 2187, while the sum is 32.

The square root of 101030999 is about 10051.4177606943. The cubic root of 101030999 is about 465.7485903418.

The spelling of 101030999 in words is "one hundred one million, thirty thousand, nine hundred ninety-nine".

Divisors: 1 19 131 2489 40591 771229 5317421 101030999