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130000464 = 2434112829
BaseRepresentation
bin1111011111110…
…10011001010000
3100001121201010000
413233322121100
5231240003324
620522210000
73135662046
oct757723120
9301551100
10130000464
1167422300
1237653900
1320c18a69
14133a0396
15b62d9c9
hex7bfa650

130000464 has 150 divisors (see below), whose sum is σ = 414072890. Its totient is φ = 39346560.

The previous prime is 130000459. The next prime is 130000469. The reversal of 130000464 is 464000031.

It is an interprime number because it is at equal distance from previous prime (130000459) and next prime (130000469).

It can be written as a sum of positive squares in only one way, i.e., 114318864 + 15681600 = 10692^2 + 3960^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130000469) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 156402 + ... + 157230.

Almost surely, 2130000464 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 130000464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207036445).

130000464 is an abundant number, since it is smaller than the sum of its proper divisors (284072426).

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

130000464 is a wasteful number, since it uses less digits than its factorization.

130000464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130000464 is about 11401.7745987193. The cubic root of 130000464 is about 506.5803046093.

Adding to 130000464 its reverse (464000031), we get a palindrome (594000495).

The spelling of 130000464 in words is "one hundred thirty million, four hundred sixty-four", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 54 66 72 81 88 99 108 121 132 144 162 176 198 216 242 264 297 324 363 396 432 484 528 594 648 726 792 829 891 968 1089 1188 1296 1452 1584 1658 1782 1936 2178 2376 2487 2904 3267 3316 3564 4356 4752 4974 5808 6534 6632 7128 7461 8712 9119 9801 9948 13068 13264 14256 14922 17424 18238 19602 19896 22383 26136 27357 29844 36476 39204 39792 44766 52272 54714 59688 67149 72952 78408 82071 89532 100309 109428 119376 134298 145904 156816 164142 179064 200618 218856 246213 268596 300927 328284 358128 401236 437712 492426 537192 601854 656568 738639 802472 902781 984852 1074384 1203708 1313136 1477278 1604944 1805562 1969704 2407416 2708343 2954556 3611124 3939408 4814832 5416686 5909112 7222248 8125029 10833372 11818224 14444496 16250058 21666744 32500116 43333488 65000232 130000464