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538263357752 = 23172192644911
BaseRepresentation
bin1111101010100101111…
…11110000100100111000
31220110100111110200102202
413311102333300210320
532304330404422002
61051135203445332
753613445023251
oct7652277604470
91813314420382
10538263357752
111983046a650a
128839b386848
133b9b1494673
141c0a2ccbb28
15e004e29502
hex7d52ff0938

538263357752 has 72 divisors (see below), whose sum is σ = 1131501328560. Its totient is φ = 239968431360.

The previous prime is 538263357743. The next prime is 538263357761. The reversal of 538263357752 is 257753362835.

It is an interprime number because it is at equal distance from previous prime (538263357743) and next prime (538263357761).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 512177 + ... + 1157087.

It is an arithmetic number, because the mean of its divisors is an integer number (15715296230).

Almost surely, 2538263357752 is an apocalyptic number.

It is an amenable number.

538263357752 is an abundant number, since it is smaller than the sum of its proper divisors (593237970808).

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

538263357752 is a wasteful number, since it uses less digits than its factorization.

538263357752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644989 (or 644949 counting only the distinct ones).

The product of its digits is 31752000, while the sum is 56.

The spelling of 538263357752 in words is "five hundred thirty-eight billion, two hundred sixty-three million, three hundred fifty-seven thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 17 19 34 38 68 76 136 152 289 323 361 578 646 722 1156 1292 1444 2312 2584 2888 5491 6137 10982 12274 21964 24548 43928 49096 104329 208658 417316 644911 834632 1289822 2579644 5159288 10963487 12253309 21926974 24506618 43853948 49013236 87707896 98026472 186379279 208306253 232812871 372758558 416612506 465625742 745517116 833225012 931251484 1491034232 1666450024 1862502968 3541206301 3957818807 7082412602 7915637614 14164825204 15831275228 28329650408 31662550456 67282919719 134565839438 269131678876 538263357752