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130055420 = 22511591161
BaseRepresentation
bin1111100000001…
…11110011111100
3100001201111111102
413300013303330
5231243233140
620523312232
73136311215
oct760076374
9301644442
10130055420
116745a620
123767b678
1320c37a91
14133b640c
15b63ee15
hex7c07cfc

130055420 has 24 divisors (see below), whose sum is σ = 297945648. Its totient is φ = 47292800.

The previous prime is 130055383. The next prime is 130055441. The reversal of 130055420 is 24550031.

130055420 = T2791 + T2792 + ... + T2823.

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

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 130055392 and 130055401.

It is a congruent number.

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, 295361 + ... + 295800.

It is an arithmetic number, because the mean of its divisors is an integer number (12414402).

Almost surely, 2130055420 is an apocalyptic number.

130055420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130055420 is an abundant number, since it is smaller than the sum of its proper divisors (167890228).

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

130055420 is a wasteful number, since it uses less digits than its factorization.

130055420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591181 (or 591179 counting only the distinct ones).

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

The square root of 130055420 is about 11404.1843198012. The cubic root of 130055420 is about 506.6516779576.

The spelling of 130055420 in words is "one hundred thirty million, fifty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 591161 1182322 2364644 2955805 5911610 6502771 11823220 13005542 26011084 32513855 65027710 130055420