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256000000652 = 221171731122551
BaseRepresentation
bin1110111001101011001…
…0100000001010001100
3220110210002011110200122
43232122302200022030
513143242000010102
6313334344244112
724331630050014
oct3563262401214
9813702143618
10256000000652
1199629365580
1241745a70638
131b1aa158036
14c567620c44
1569d49520a2
hex3b9aca028c

256000000652 has 48 divisors (see below), whose sum is σ = 502400392704. Its totient is φ = 113153040000.

The previous prime is 256000000559. The next prime is 256000000667.

It is a happy number.

256000000652 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 333224 + ... + 789327.

It is an arithmetic number, because the mean of its divisors is an integer number (10466674848).

Almost surely, 2256000000652 is an apocalyptic number.

256000000652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

256000000652 is a deficient number, since it is larger than the sum of its proper divisors (246400392052).

256000000652 is a wasteful number, since it uses less digits than its factorization.

256000000652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122710 (or 1122708 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

It can be divided in two parts, 256000000 and 652, that added together give a palindrome (256000652).

The spelling of 256000000652 in words is "two hundred fifty-six billion, six hundred fifty-two", and thus it is an aban number.

Divisors: 1 2 4 11 22 44 71 73 142 146 284 292 781 803 1562 1606 3124 3212 5183 10366 20732 57013 114026 228052 1122551 2245102 4490204 12348061 24696122 49392244 79701121 81946223 159402242 163892446 318804484 327784892 876712331 901408453 1753424662 1802816906 3506849324 3605633812 5818181833 11636363666 23272727332 64000000163 128000000326 256000000652