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53211811235 = 511287953407
BaseRepresentation
bin110001100011101010…
…111100110110100011
312002100102102002100112
4301203222330312203
51332434210424420
640240053441535
73562431634622
oct614352746643
9162312362315
1053211811235
1120626753400
12a3906402ab
1350302b564b
14280b1116b9
1515b68278c5
hexc63abcda3

53211811235 has 12 divisors (see below), whose sum is σ = 70186819584. Its totient is φ = 38699498640.

The previous prime is 53211811199. The next prime is 53211811241.

53211811235 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53211811235 - 212 = 53211807139 is a prime.

It is a super-4 number, since 4×532118112354 (a number of 44 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43976099 + ... + 43977308.

It is an arithmetic number, because the mean of its divisors is an integer number (5848901632).

Almost surely, 253211811235 is an apocalyptic number.

53211811235 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53211811235 is a deficient number, since it is larger than the sum of its proper divisors (16975008349).

53211811235 is a wasteful number, since it uses less digits than its factorization.

53211811235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87953434 (or 87953423 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The spelling of 53211811235 in words is "fifty-three billion, two hundred eleven million, eight hundred eleven thousand, two hundred thirty-five".

Divisors: 1 5 11 55 121 605 87953407 439767035 967487477 4837437385 10642362247 53211811235