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130917500 = 225477481
BaseRepresentation
bin1111100110110…
…10010001111100
3100010100022001022
413303122101330
5232003330000
620554003312
73146531450
oct763322174
9303308038
10130917500
116799928a
1237a16538
132117a29c
141355c660
15b760585
hex7cda47c

130917500 has 60 divisors (see below), whose sum is σ = 327232752. Its totient is φ = 44880000.

The previous prime is 130917491. The next prime is 130917503. The reversal of 130917500 is 5719031.

It is a self number, because there is not a number n which added to its sum of digits gives 130917500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130917503) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13760 + ... + 21240.

Almost surely, 2130917500 is an apocalyptic number.

130917500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130917500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163616376).

130917500 is an abundant number, since it is smaller than the sum of its proper divisors (196315252).

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

130917500 is an equidigital number, since it uses as much as digits as its factorization.

130917500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7512 (or 7495 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 130917500 is about 11441.9185454189. The cubic root of 130917500 is about 507.7686703789.

The spelling of 130917500 in words is "one hundred thirty million, nine hundred seventeen thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 125 140 175 250 350 500 625 700 875 1250 1750 2500 3500 4375 7481 8750 14962 17500 29924 37405 52367 74810 104734 149620 187025 209468 261835 374050 523670 748100 935125 1047340 1309175 1870250 2618350 3740500 4675625 5236700 6545875 9351250 13091750 18702500 26183500 32729375 65458750 130917500