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53581322748 = 22316733180777
BaseRepresentation
bin110001111001101100…
…100001100111111100
312010022011201012212010
4301321230201213330
51334213304311443
640340453411220
73604536504642
oct617154414774
9163264635763
1053581322748
11207a6294918
12a474339b10
13508ba10805
14284421b192
1515d8eb7733
hexc79b219fc

53581322748 has 48 divisors (see below), whose sum is σ = 126153264384. Its totient is φ = 17699637120.

The previous prime is 53581322731. The next prime is 53581322797. The reversal of 53581322748 is 84722318535.

It is a junction number, because it is equal to n+sod(n) for n = 53581322697 and 53581322706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622936 + ... + 703712.

It is an arithmetic number, because the mean of its divisors is an integer number (2628193008).

Almost surely, 253581322748 is an apocalyptic number.

It is an amenable number.

53581322748 is an abundant number, since it is smaller than the sum of its proper divisors (72571941636).

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

53581322748 is a wasteful number, since it uses less digits than its factorization.

53581322748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81282 (or 81280 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

The spelling of 53581322748 in words is "fifty-three billion, five hundred eighty-one million, three hundred twenty-two thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 167 331 334 501 662 668 993 1002 1324 1986 2004 3972 55277 80777 110554 161554 165831 221108 242331 323108 331662 484662 663324 969324 13489759 26737187 26979518 40469277 53474374 53959036 80211561 80938554 106948748 160423122 161877108 320846244 4465110229 8930220458 13395330687 17860440916 26790661374 53581322748