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130502752 = 254078211
BaseRepresentation
bin1111100011101…
…01000001100000
3100002120020010021
413301311001200
5231402042002
620541043224
73143153332
oct761650140
9302506107
10130502752
1167735716
1237856514
1321063583
1413491452
15b6cc737
hex7c75060

130502752 has 12 divisors (see below), whose sum is σ = 256927356. Its totient is φ = 65251360.

The previous prime is 130502741. The next prime is 130502767. The reversal of 130502752 is 257205031.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2039074 + ... + 2039137.

It is an arithmetic number, because the mean of its divisors is an integer number (21410613).

Almost surely, 2130502752 is an apocalyptic number.

It is an amenable number.

130502752 is a deficient number, since it is larger than the sum of its proper divisors (126424604).

130502752 is an equidigital number, since it uses as much as digits as its factorization.

130502752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078221 (or 4078213 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 130502752 is about 11423.7801099286. The cubic root of 130502752 is about 507.2318976712.

Adding to 130502752 its reverse (257205031), we get a palindrome (387707783).

The spelling of 130502752 in words is "one hundred thirty million, five hundred two thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 32 4078211 8156422 16312844 32625688 65251376 130502752