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103135240 = 23513198337
BaseRepresentation
bin1100010010110…
…11100000001000
321012001210221201
412021123200020
5202400311430
614122313544
72361430555
oct611334010
9235053851
10103135240
115324303a
122a6588b4
13184a0890
14d9a9a2c
1590c38ca
hex625b808

103135240 has 32 divisors (see below), whose sum is σ = 249905880. Its totient is φ = 38080512.

The previous prime is 103135237. The next prime is 103135259. The reversal of 103135240 is 42531301.

It can be written as a sum of positive squares in 4 ways, for example, as 67207204 + 35928036 = 8198^2 + 5994^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98649 + ... + 99688.

Almost surely, 2103135240 is an apocalyptic number.

103135240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103135240 is an abundant number, since it is smaller than the sum of its proper divisors (146770640).

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

103135240 is a wasteful number, since it uses less digits than its factorization.

103135240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198361 (or 198357 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 103135240 is about 10155.5521760267. The cubic root of 103135240 is about 468.9598849128.

Adding to 103135240 its reverse (42531301), we get a palindrome (145666541).

The spelling of 103135240 in words is "one hundred three million, one hundred thirty-five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 198337 396674 793348 991685 1586696 1983370 2578381 3966740 5156762 7933480 10313524 12891905 20627048 25783810 51567620 103135240