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53031463540 = 225111912686953
BaseRepresentation
bin110001011000111010…
…111110101001110100
312001212212001110211021
4301120322332221310
51332102023313130
640210132150524
73555112000606
oct613072765164
9161785043737
1053031463540
1120543973520
12a340168444
135001b1c433
1427d11a7176
1515a5aa137a
hexc58ebea74

53031463540 has 48 divisors (see below), whose sum is σ = 127884496320. Its totient is φ = 18269210880.

The previous prime is 53031463493. The next prime is 53031463547. The reversal of 53031463540 is 4536413035.

It is a super-2 number, since 2×530314635402 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53031463496 and 53031463505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53031463547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6339297 + ... + 6347656.

It is an arithmetic number, because the mean of its divisors is an integer number (2664260340).

Almost surely, 253031463540 is an apocalyptic number.

It is an amenable number.

53031463540 is an abundant number, since it is smaller than the sum of its proper divisors (74853032780).

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

53031463540 is a wasteful number, since it uses less digits than its factorization.

53031463540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12686992 (or 12686990 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 53031463540 its reverse (4536413035), we get a palindrome (57567876575).

The spelling of 53031463540 in words is "fifty-three billion, thirty-one million, four hundred sixty-three thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 19 20 22 38 44 55 76 95 110 190 209 220 380 418 836 1045 2090 4180 12686953 25373906 50747812 63434765 126869530 139556483 241052107 253739060 279112966 482104214 558225932 697782415 964208428 1205260535 1395564830 2410521070 2651573177 2791129660 4821042140 5303146354 10606292708 13257865885 26515731770 53031463540