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130262240 = 255814139
BaseRepresentation
bin1111100001110…
…10010011100000
3100002010000012102
413300322103200
5231321342430
620531545532
73141132203
oct760722340
9302100172
10130262240
1167590a49
123775b2a8
1320caac64
141342b93a
15b681345
hex7c3a4e0

130262240 has 24 divisors (see below), whose sum is σ = 307744920. Its totient is φ = 52104832.

The previous prime is 130262221. The next prime is 130262263. The reversal of 130262240 is 42262031.

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

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 3 ways as a sum of consecutive naturals, for example, 406910 + ... + 407229.

It is an arithmetic number, because the mean of its divisors is an integer number (12822705).

Almost surely, 2130262240 is an apocalyptic number.

130262240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130262240 is an abundant number, since it is smaller than the sum of its proper divisors (177482680).

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

130262240 is an equidigital number, since it uses as much as digits as its factorization.

130262240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814154 (or 814146 counting only the distinct ones).

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

The square root of 130262240 is about 11413.2484420519. The cubic root of 130262240 is about 506.9201025110.

The spelling of 130262240 in words is "one hundred thirty million, two hundred sixty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 814139 1628278 3256556 4070695 6513112 8141390 13026224 16282780 26052448 32565560 65131120 130262240