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103120340 = 2255156017
BaseRepresentation
bin1100010010101…
…11110111010100
321012001001111212
412021113313110
5202344322330
614122120552
72361336251
oct611276724
9235031455
10103120340
1153232924
122a650158
1318496b6b
14d9a4428
1590be295
hex6257dd4

103120340 has 12 divisors (see below), whose sum is σ = 216552756. Its totient is φ = 41248128.

The previous prime is 103120333. The next prime is 103120349. The reversal of 103120340 is 43021301.

It can be written as a sum of positive squares in 2 ways, for example, as 46840336 + 56280004 = 6844^2 + 7502^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103120349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2577989 + ... + 2578028.

It is an arithmetic number, because the mean of its divisors is an integer number (18046063).

Almost surely, 2103120340 is an apocalyptic number.

103120340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103120340 is an abundant number, since it is smaller than the sum of its proper divisors (113432416).

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

103120340 is a wasteful number, since it uses less digits than its factorization.

103120340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156026 (or 5156024 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 103120340 is about 10154.8185606637. The cubic root of 103120340 is about 468.9373002016.

Adding to 103120340 its reverse (43021301), we get a palindrome (146141641).

The spelling of 103120340 in words is "one hundred three million, one hundred twenty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 5156017 10312034 20624068 25780085 51560170 103120340