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103121983 = 1744313693
BaseRepresentation
bin1100010010110…
…00010000111111
321012001010202201
412021120100333
5202344400413
614122132331
72361344116
oct611302077
9235033681
10103121983
1153234088
122a6510a7
1318497833
14d9a4c7d
1590be9dd
hex625843f

103121983 has 8 divisors (see below), whose sum is σ = 109442448. Its totient is φ = 96829824.

The previous prime is 103121971. The next prime is 103121989. The reversal of 103121983 is 389121301.

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

It is not a de Polignac number, because 103121983 - 29 = 103121471 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 (103121989) 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, 685 + ... + 14377.

It is an arithmetic number, because the mean of its divisors is an integer number (13680306).

Almost surely, 2103121983 is an apocalyptic number.

103121983 is a deficient number, since it is larger than the sum of its proper divisors (6320465).

103121983 is a wasteful number, since it uses less digits than its factorization.

103121983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14153.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 103121983 is about 10154.8994578972. The cubic root of 103121983 is about 468.9397906896.

The spelling of 103121983 in words is "one hundred three million, one hundred twenty-one thousand, nine hundred eighty-three".

Divisors: 1 17 443 7531 13693 232781 6065999 103121983