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530015450 = 2521923127191
BaseRepresentation
bin11111100101110…
…110010011011010
31100221022120111212
4133211312103122
52041140443300
6124332023122
716064025356
oct3745662332
91327276455
10530015450
112521a84a8
12129601aa2
1385a64113
145056a466
15317e6935
hex1f9764da

530015450 has 96 divisors (see below), whose sum is σ = 1097072640. Its totient is φ = 189604800.

The previous prime is 530015413. The next prime is 530015459. The reversal of 530015450 is 54510035.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (530015459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2774855 + ... + 2775045.

It is an arithmetic number, because the mean of its divisors is an integer number (11427840).

Almost surely, 2530015450 is an apocalyptic number.

530015450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

530015450 is an abundant number, since it is smaller than the sum of its proper divisors (567057190).

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

530015450 is a wasteful number, since it uses less digits than its factorization.

530015450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 530015450 is about 23022.0644165548. The cubic root of 530015450 is about 809.2750970147.

Adding to 530015450 its reverse (54510035), we get a palindrome (584525485).

The spelling of 530015450 in words is "five hundred thirty million, fifteen thousand, four hundred fifty".

Divisors: 1 2 5 10 19 23 25 38 46 50 95 115 127 190 191 230 254 382 437 475 575 635 874 950 955 1150 1270 1910 2185 2413 2921 3175 3629 4370 4393 4775 4826 5842 6350 7258 8786 9550 10925 12065 14605 18145 21850 21965 24130 24257 29210 36290 43930 48514 55499 60325 73025 83467 90725 109825 110998 120650 121285 146050 166934 181450 219650 242570 277495 417335 460883 554990 557911 606425 834670 921766 1115822 1212850 1387475 2086675 2304415 2774950 2789555 4173350 4608830 5579110 10600309 11522075 13947775 21200618 23044150 27895550 53001545 106003090 265007725 530015450