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103025540 = 2255151277
BaseRepresentation
bin1100010010000…
…00101110000100
321011212020110202
412021000232010
5202333304130
614120110032
72360463002
oct611005604
9234766422
10103025540
1153178682
122a605318
1318462977
14d97ba72
1590a1145
hex6240b84

103025540 has 12 divisors (see below), whose sum is σ = 216353676. Its totient is φ = 41210208.

The previous prime is 103025537. The next prime is 103025561. The reversal of 103025540 is 45520301.

It can be written as a sum of positive squares in 2 ways, for example, as 80425024 + 22600516 = 8968^2 + 4754^2 .

It is a super-2 number, since 2×1030255402 = 21228523784583200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5151277 = 103025540 / (1 + 0 + 3 + 0 + 2 + 5 + 5 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2575619 + ... + 2575658.

It is an arithmetic number, because the mean of its divisors is an integer number (18029473).

Almost surely, 2103025540 is an apocalyptic number.

103025540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103025540 is an abundant number, since it is smaller than the sum of its proper divisors (113328136).

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

103025540 is a wasteful number, since it uses less digits than its factorization.

103025540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5151286 (or 5151284 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 103025540 is about 10150.1497525899. The cubic root of 103025540 is about 468.7935558934.

Adding to 103025540 its reverse (45520301), we get a palindrome (148545841).

The spelling of 103025540 in words is "one hundred three million, twenty-five thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 5151277 10302554 20605108 25756385 51512770 103025540