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130412832 = 253112103109
BaseRepresentation
bin1111100010111…
…11000100100000
3100002101122202220
413301133010200
5231341202312
620535111040
73142330224
oct761370440
9302348686
10130412832
1167684100
1237812480
1321031674
141346a784
15b6b0c8c
hex7c5f120

130412832 has 144 divisors (see below), whose sum is σ = 383423040. Its totient is φ = 38776320.

The previous prime is 130412809. The next prime is 130412839. The reversal of 130412832 is 238214031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (130412839) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1196394 + ... + 1196502.

It is an arithmetic number, because the mean of its divisors is an integer number (2662660).

Almost surely, 2130412832 is an apocalyptic number.

130412832 is a gapful number since it is divisible by the number (12) 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 130412832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191711520).

130412832 is an abundant number, since it is smaller than the sum of its proper divisors (253010208).

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

130412832 is a wasteful number, since it uses less digits than its factorization.

130412832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 130412832 is about 11419.8437817686. The cubic root of 130412832 is about 507.1153719756.

Adding to 130412832 its reverse (238214031), we get a palindrome (368626863).

The spelling of 130412832 in words is "one hundred thirty million, four hundred twelve thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 103 109 121 132 176 206 218 242 264 309 327 352 363 412 436 484 528 618 654 726 824 872 968 1056 1133 1199 1236 1308 1452 1648 1744 1936 2266 2398 2472 2616 2904 3296 3399 3488 3597 3872 4532 4796 4944 5232 5808 6798 7194 9064 9592 9888 10464 11227 11616 12463 13189 13596 14388 18128 19184 22454 24926 26378 27192 28776 33681 36256 37389 38368 39567 44908 49852 52756 54384 57552 67362 74778 79134 89816 99704 105512 108768 115104 123497 134724 149556 158268 179632 199408 211024 246994 269448 299112 316536 359264 370491 398816 422048 493988 538896 598224 633072 740982 987976 1077792 1196448 1266144 1358467 1481964 1975952 2716934 2963928 3951904 4075401 5433868 5927856 8150802 10867736 11855712 16301604 21735472 32603208 43470944 65206416 130412832