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103202130440 = 23518047142963
BaseRepresentation
bin110000000011101010…
…0111000101000001000
3100212101100000102102102
41200013110320220020
53142324221133230
6115224351452532
710312305430523
oct1400724705010
9325340012372
10103202130440
113a849a040a2
1218002227148
139969045b96
144dd0441bba
152a40409045
hex1807538a08

103202130440 has 32 divisors (see below), whose sum is σ = 232219284480. Its totient is φ = 41278276032.

The previous prime is 103202130431. The next prime is 103202130457. The reversal of 103202130440 is 44031202301.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650399 + ... + 793361.

It is an arithmetic number, because the mean of its divisors is an integer number (7256852640).

Almost surely, 2103202130440 is an apocalyptic number.

103202130440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103202130440 is an abundant number, since it is smaller than the sum of its proper divisors (129017154040).

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

103202130440 is a wasteful number, since it uses less digits than its factorization.

103202130440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161021 (or 161017 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 103202130440 its reverse (44031202301), we get a palindrome (147233332741).

The spelling of 103202130440 in words is "one hundred three billion, two hundred two million, one hundred thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 18047 36094 72188 90235 142963 144376 180470 285926 360940 571852 714815 721880 1143704 1429630 2859260 5718520 2580053261 5160106522 10320213044 12900266305 20640426088 25800532610 51601065220 103202130440