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130549620 = 22352175827
BaseRepresentation
bin1111100100000…
…00011101110100
3100002122121102010
413302000131310
5231410041440
620542044220
73143440065
oct762003564
9302577363
10130549620
1167767953
1237879670
132107b9c6
14134a456c
15b6db580
hex7c80774

130549620 has 24 divisors (see below), whose sum is σ = 365539104. Its totient is φ = 34813216.

The previous prime is 130549609. The next prime is 130549717. The reversal of 130549620 is 26945031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 1087854 + ... + 1087973.

It is an arithmetic number, because the mean of its divisors is an integer number (15230796).

Almost surely, 2130549620 is an apocalyptic number.

130549620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130549620 is an abundant number, since it is smaller than the sum of its proper divisors (234989484).

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

130549620 is a wasteful number, since it uses less digits than its factorization.

130549620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175839 (or 2175837 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 130549620 is about 11425.8312607880. The cubic root of 130549620 is about 507.2926118423.

The spelling of 130549620 in words is "one hundred thirty million, five hundred forty-nine thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2175827 4351654 6527481 8703308 10879135 13054962 21758270 26109924 32637405 43516540 65274810 130549620