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130421552 = 24175383109
BaseRepresentation
bin1111100011000…
…01001100110000
3100002102002201212
413301201030300
5231341442202
620535215252
73142364522
oct761411460
9302362655
10130421552
116768a708
1237817528
1321035621
141346da12
15b6b3652
hex7c61330

130421552 has 80 divisors (see below), whose sum is σ = 278419680. Its totient is φ = 58945536.

The previous prime is 130421531. The next prime is 130421573. The reversal of 130421552 is 255124031.

It is an interprime number because it is at equal distance from previous prime (130421531) and next prime (130421573).

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, 1196474 + ... + 1196582.

It is an arithmetic number, because the mean of its divisors is an integer number (3480246).

Almost surely, 2130421552 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 130421552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139209840).

130421552 is an abundant number, since it is smaller than the sum of its proper divisors (147998128).

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

130421552 is a wasteful number, since it uses less digits than its factorization.

130421552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 130421552 is about 11420.2255669492. The cubic root of 130421552 is about 507.1266744102.

Adding to 130421552 its reverse (255124031), we get a palindrome (385545583).

The spelling of 130421552 in words is "one hundred thirty million, four hundred twenty-one thousand, five hundred fifty-two".

Divisors: 1 2 4 8 16 17 34 53 68 83 106 109 136 166 212 218 272 332 424 436 664 848 872 901 1328 1411 1744 1802 1853 2822 3604 3706 4399 5644 5777 7208 7412 8798 9047 11288 11554 14416 14824 17596 18094 22576 23108 29648 35192 36188 46216 70384 72376 74783 92432 98209 144752 149566 153799 196418 299132 307598 392836 479491 598264 615196 785672 958982 1196528 1230392 1571344 1917964 2460784 3835928 7671856 8151347 16302694 32605388 65210776 130421552