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57070000221 = 3132532123851
BaseRepresentation
bin110101001001101000…
…110001100001011101
312110022022021101122220
4311021220301201131
51413334410001341
642115000055553
74060150666203
oct651150614135
9173268241586
1057070000221
1122226588943
12b0887645b9
1354c6714600
142a956ad073
1517403d9a66
hexd49a3185d

57070000221 has 24 divisors (see below), whose sum is σ = 83951621856. Its totient is φ = 34457342400.

The previous prime is 57070000187. The next prime is 57070000241. The reversal of 57070000221 is 12200007075.

It is not a de Polignac number, because 57070000221 - 29 = 57069999709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57070000191 and 57070000200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57070000241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1035055 + ... + 1088796.

It is an arithmetic number, because the mean of its divisors is an integer number (3497984244).

Almost surely, 257070000221 is an apocalyptic number.

It is an amenable number.

57070000221 is a deficient number, since it is larger than the sum of its proper divisors (26881621635).

57070000221 is a wasteful number, since it uses less digits than its factorization.

57070000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123933 (or 2123920 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

Adding to 57070000221 its reverse (12200007075), we get a palindrome (69270007296).

The spelling of 57070000221 in words is "fifty-seven billion, seventy million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 3 13 39 53 159 169 507 689 2067 8957 26871 2123851 6371553 27610063 82830189 112564103 337692309 358930819 1076792457 1463333339 4390000017 19023333407 57070000221