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530023205500 = 22533779362657
BaseRepresentation
bin1111011011001111101…
…10000100101001111100
31212200002020011120120121
413231213312010221330
532140441420034000
61043253404424324
753202316624615
oct7554766045174
91780066146517
10530023205500
11194866311128
128687b8480a4
133ac9a279329
141b92078cc0c
15dbc17e2b1a
hex7b67d84a7c

530023205500 has 96 divisors (see below), whose sum is σ = 1203908509440. Its totient is φ = 203667609600.

The previous prime is 530023205473. The next prime is 530023205501. The reversal of 530023205500 is 5502320035.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530023205501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1280172 + ... + 1642828.

It is an arithmetic number, because the mean of its divisors is an integer number (12540713640).

Almost surely, 2530023205500 is an apocalyptic number.

530023205500 is a gapful number since it is divisible by the number (50) 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 530023205500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601954254720).

530023205500 is an abundant number, since it is smaller than the sum of its proper divisors (673885303940).

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

530023205500 is a wasteful number, since it uses less digits than its factorization.

530023205500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362792 (or 362780 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

Adding to 530023205500 its reverse (5502320035), we get a palindrome (535525525535).

The spelling of 530023205500 in words is "five hundred thirty billion, twenty-three million, two hundred five thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 37 50 74 79 100 125 148 158 185 250 316 370 395 500 740 790 925 1580 1850 1975 2923 3700 3950 4625 5846 7900 9250 9875 11692 14615 18500 19750 29230 39500 58460 73075 146150 292300 362657 365375 725314 730750 1450628 1461500 1813285 3626570 7253140 9066425 13418309 18132850 26836618 28649903 36265700 45332125 53673236 57299806 67091545 90664250 114599612 134183090 143249515 181328500 268366180 286499030 335457725 572998060 670915450 716247575 1060046411 1341830900 1432495150 1677288625 2120092822 2864990300 3354577250 3581237875 4240185644 5300232055 6709154500 7162475750 10600464110 14324951500 21200928220 26501160275 53002320550 106004641100 132505801375 265011602750 530023205500