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103150511440 = 2451289381393
BaseRepresentation
bin110000000010000111…
…1111110010101010000
3100212020201212220110121
41200010033332111100
53142223012331230
6115215305240024
710311110611024
oct1400417762520
9325221786417
10103150511440
113a822857a69
1217ba8a93014
13995b4418b2
144dc7646384
152a3ab0e77a
hex18043fe550

103150511440 has 20 divisors (see below), whose sum is σ = 239824939284. Its totient is φ = 41260204544.

The previous prime is 103150511407. The next prime is 103150511441. The reversal of 103150511440 is 44115051301.

It can be written as a sum of positive squares in 2 ways, for example, as 62382055696 + 40768455744 = 249764^2 + 201912^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103150511441) 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, 644690617 + ... + 644690776.

Almost surely, 2103150511440 is an apocalyptic number.

103150511440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103150511440 is an abundant number, since it is smaller than the sum of its proper divisors (136674427844).

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

103150511440 is a wasteful number, since it uses less digits than its factorization.

103150511440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289381406 (or 1289381400 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 103150511440 its reverse (44115051301), we get a palindrome (147265562741).

The spelling of 103150511440 in words is "one hundred three billion, one hundred fifty million, five hundred eleven thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1289381393 2578762786 5157525572 6446906965 10315051144 12893813930 20630102288 25787627860 51575255720 103150511440