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130250784 = 25343139227
BaseRepresentation
bin1111100001101…
…11100000100000
3100002002102111010
413300313200200
5231321011114
620531420520
73141053616
oct760674040
9302072433
10130250784
1167583384
1237754740
1320ca5991
14134276b6
15b67cc59
hex7c37820

130250784 has 96 divisors (see below), whose sum is σ = 353928960. Its totient is φ = 41916672.

The previous prime is 130250737. The next prime is 130250797. The reversal of 130250784 is 487052031.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1302507842 = 33930533465229312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573679 + ... + 573905.

It is an arithmetic number, because the mean of its divisors is an integer number (3686760).

Almost surely, 2130250784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130250784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176964480).

130250784 is an abundant number, since it is smaller than the sum of its proper divisors (223678176).

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

130250784 is a wasteful number, since it uses less digits than its factorization.

130250784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 130250784 is about 11412.7465581253. The cubic root of 130250784 is about 506.9052415993.

The spelling of 130250784 in words is "one hundred thirty million, two hundred fifty thousand, seven hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 43 48 86 96 129 139 172 227 258 278 344 417 454 516 556 681 688 834 908 1032 1112 1362 1376 1668 1816 2064 2224 2724 3336 3632 4128 4448 5448 5977 6672 7264 9761 10896 11954 13344 17931 19522 21792 23908 29283 31553 35862 39044 47816 58566 63106 71724 78088 94659 95632 117132 126212 143448 156176 189318 191264 234264 252424 286896 312352 378636 468528 504848 573792 757272 937056 1009696 1356779 1514544 2713558 3029088 4070337 5427116 8140674 10854232 16281348 21708464 32562696 43416928 65125392 130250784