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103071930 = 235131272081
BaseRepresentation
bin1100010010011…
…00000010111010
321011221121002220
412021030002322
5202341300210
614121104510
72361045153
oct611140272
9234847086
10103071930
11531aa515
122a628136
131847ab10
14d99092a
1590aec70
hex624c0ba

103071930 has 64 divisors (see below), whose sum is σ = 268627968. Its totient is φ = 25159680.

The previous prime is 103071877. The next prime is 103071937. The reversal of 103071930 is 39170301.

It is a self number, because there is not a number n which added to its sum of digits gives 103071930.

It is not an unprimeable number, because it can be changed into a prime (103071937) 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 31 ways as a sum of consecutive naturals, for example, 48490 + ... + 50570.

It is an arithmetic number, because the mean of its divisors is an integer number (4197312).

Almost surely, 2103071930 is an apocalyptic number.

103071930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103071930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134313984).

103071930 is an abundant number, since it is smaller than the sum of its proper divisors (165556038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103071930 is a wasteful number, since it uses less digits than its factorization.

103071930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 103071930 is about 10152.4346833654. The cubic root of 103071930 is about 468.8639076068.

The spelling of 103071930 in words is "one hundred three million, seventy-one thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 127 130 195 254 381 390 635 762 1270 1651 1905 2081 3302 3810 4162 4953 6243 8255 9906 10405 12486 16510 20810 24765 27053 31215 49530 54106 62430 81159 135265 162318 264287 270530 405795 528574 792861 811590 1321435 1585722 2642870 3435731 3964305 6871462 7928610 10307193 17178655 20614386 34357310 51535965 103071930