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130420511 = 133232989
BaseRepresentation
bin1111100011000…
…00111100011111
3100002102001022022
413301200330133
5231341424021
620535210355
73142361504
oct761407437
9302361268
10130420511
1167689951
12378169bb
1321035000
141346d4ab
15b6b31ab
hex7c60f1f

130420511 has 32 divisors (see below), whose sum is σ = 154224000. Its totient is φ = 109933824.

The previous prime is 130420489. The next prime is 130420513. The reversal of 130420511 is 115024031.

It is a de Polignac number, because none of the positive numbers 2k-130420511 is a prime.

It is a super-2 number, since 2×1304205112 = 34019019379002242, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 130420511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130420513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1465355 + ... + 1465443.

It is an arithmetic number, because the mean of its divisors is an integer number (4819500).

Almost surely, 2130420511 is an apocalyptic number.

130420511 is a deficient number, since it is larger than the sum of its proper divisors (23803489).

130420511 is an equidigital number, since it uses as much as digits as its factorization.

130420511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 130420511 is about 11420.1799898250. The cubic root of 130420511 is about 507.1253251437.

Adding to 130420511 its reverse (115024031), we get a palindrome (245444542).

The spelling of 130420511 in words is "one hundred thirty million, four hundred twenty thousand, five hundred eleven".

Divisors: 1 13 23 29 89 169 299 377 667 1157 2047 2197 2581 3887 4901 8671 15041 26611 33553 50531 59363 63713 112723 195533 345943 436189 771719 1465399 4497259 5670457 10032347 130420511