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57383252730 = 23254115551017
BaseRepresentation
bin110101011100010011…
…101111001011111010
312111010010201021022200
4311130103233023322
51420010103041410
642210030131030
74101003412626
oct653423571372
9174103637280
1057383252730
1122377394111
12b155650a76
1355465a251b
142ac5132186
15175cb653c0
hexd5c4ef2fa

57383252730 has 48 divisors (see below), whose sum is σ = 152835404904. Its totient is φ = 14928975360.

The previous prime is 57383252699. The next prime is 57383252767. The reversal of 57383252730 is 3725238375.

57383252730 is a `hidden beast` number, since 57 + 3 + 8 + 325 + 273 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18049653801 + 39333598929 = 134349^2 + 198327^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7771819 + ... + 7779198.

Almost surely, 257383252730 is an apocalyptic number.

57383252730 is an abundant number, since it is smaller than the sum of its proper divisors (95452152174).

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

57383252730 is a wasteful number, since it uses less digits than its factorization.

57383252730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15551071 (or 15551068 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The spelling of 57383252730 in words is "fifty-seven billion, three hundred eighty-three million, two hundred fifty-two thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 41 45 82 90 123 205 246 369 410 615 738 1230 1845 3690 15551017 31102034 46653051 77755085 93306102 139959153 155510170 233265255 279918306 466530510 637591697 699795765 1275183394 1399591530 1912775091 3187958485 3825550182 5738325273 6375916970 9563875455 11476650546 19127750910 28691626365 57383252730