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57246005720 = 2351431150143
BaseRepresentation
bin110101010100001000…
…001011100111011000
312110202120110101211002
4311110020023213120
51414214434140340
642144244324132
74064416006601
oct652410134730
9173676411732
1057246005720
1122306972432
12b1176a3648
13552401a287
142ab0c06da8
151750aa4715
hexd5420b9d8

57246005720 has 16 divisors (see below), whose sum is σ = 128803512960. Its totient is φ = 22898402272.

The previous prime is 57246005701. The next prime is 57246005743. The reversal of 57246005720 is 2750064275.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715575032 + ... + 715575111.

It is an arithmetic number, because the mean of its divisors is an integer number (8050219560).

Almost surely, 257246005720 is an apocalyptic number.

It is an amenable number.

57246005720 is an abundant number, since it is smaller than the sum of its proper divisors (71557507240).

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

57246005720 is a wasteful number, since it uses less digits than its factorization.

57246005720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431150154 (or 1431150150 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

Adding to 57246005720 its reverse (2750064275), we get a palindrome (59996069995).

The spelling of 57246005720 in words is "fifty-seven billion, two hundred forty-six million, five thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1431150143 2862300286 5724600572 7155750715 11449201144 14311501430 28623002860 57246005720