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53768871 = 32132232953
BaseRepresentation
bin1100110100011…
…1001010100111
310202011202000200
43031013022213
5102231100441
65200241543
71222012362
oct315071247
9122152020
1053768871
1128395392
12160102b3
13b1a7a00
1471d90d9
154ac17b6
hex33472a7

53768871 has 72 divisors (see below), whose sum is σ = 92495520. Its totient is φ = 29981952.

The previous prime is 53768863. The next prime is 53768873. The reversal of 53768871 is 17886735.

It is not a de Polignac number, because 53768871 - 23 = 53768863 is a prime.

It is a super-2 number, since 2×537688712 = 5782182977229282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53768873) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1014481 + ... + 1014533.

It is an arithmetic number, because the mean of its divisors is an integer number (1284660).

Almost surely, 253768871 is an apocalyptic number.

53768871 is a deficient number, since it is larger than the sum of its proper divisors (38726649).

53768871 is a wasteful number, since it uses less digits than its factorization.

53768871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 121 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 53768871 is about 7332.7260278835. The cubic root of 53768871 is about 377.4362765412.

The spelling of 53768871 in words is "fifty-three million, seven hundred sixty-eight thousand, eight hundred seventy-one".

Divisors: 1 3 9 13 23 29 39 53 69 87 117 159 169 207 261 299 377 477 507 667 689 897 1131 1219 1521 1537 2001 2067 2691 3393 3657 3887 4611 4901 6003 6201 8671 8957 10971 11661 13833 14703 15847 19981 26013 26871 34983 35351 44109 47541 59943 78039 80613 106053 112723 142623 179829 206011 259753 318159 338169 459563 618033 779259 1014507 1378689 1854099 2337777 4136067 5974319 17922957 53768871