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53008738068 = 223111323596619
BaseRepresentation
bin110001010111100100…
…010010011100010100
312001211021021220100010
4301113210102130110
51332030214104233
640204001120220
73554414560566
oct612744223424
9161737256303
1053008738068
1120532061540
12a334629070
134cca1c3600
1427cc16d336
1515a3ab2b63
hexc57912714

53008738068 has 144 divisors (see below), whose sum is σ = 146538201600. Its totient is φ = 14784082560.

The previous prime is 53008738061. The next prime is 53008738073. The reversal of 53008738068 is 86083780035.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53008738061) 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, 8005263 + ... + 8011881.

It is an arithmetic number, because the mean of its divisors is an integer number (1017626400).

Almost surely, 253008738068 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 53008738068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73269100800).

53008738068 is an abundant number, since it is smaller than the sum of its proper divisors (93529463532).

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

53008738068 is a wasteful number, since it uses less digits than its factorization.

53008738068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7022 (or 7007 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 53008738068 in words is "fifty-three billion, eight million, seven hundred thirty-eight thousand, sixty-eight".

Divisors: 1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 132 143 156 169 286 338 359 429 507 572 676 718 858 1014 1077 1436 1716 1859 2028 2154 3718 3949 4308 4667 5577 6619 7436 7898 9334 11154 11847 13238 14001 15796 18668 19857 22308 23694 26476 28002 39714 47388 51337 56004 60671 72809 79428 86047 102674 121342 145618 154011 172094 182013 205348 218427 242684 258141 291236 308022 344188 364026 436854 516282 616044 667381 728052 873708 946517 1032564 1118611 1334762 1893034 2002143 2237222 2376221 2669524 2839551 3355833 3786068 4004286 4474444 4752442 5679102 6711666 7128663 8008572 9504884 11358204 12304721 13423332 14257326 24609442 26138431 28514652 30890873 36914163 49218884 52276862 61781746 73828326 78415293 92672619 104553724 123563492 147656652 156830586 185345238 313661172 339799603 370690476 401581349 679599206 803162698 1019398809 1204744047 1359198412 1606325396 2038797618 2409488094 4077595236 4417394839 4818976188 8834789678 13252184517 17669579356 26504369034 53008738068