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385038461997 = 32728121749899
BaseRepresentation
bin1011001101001100001…
…01001010110000101101
31100210211222210111020200
411212212011022300231
522302024321240442
6452514554304113
736550416632460
oct5464605126055
91323758714220
10385038461997
111393261a0462
1262758728039
132a402a6aa87
14148c91112d7
15a03818034c
hex59a614ac2d

385038461997 has 24 divisors (see below), whose sum is σ = 637881067200. Its totient is φ = 219238971840.

The previous prime is 385038461963. The next prime is 385038462001. The reversal of 385038461997 is 799164830583.

385038461997 is a `hidden beast` number, since 3 + 8 + 5 + 0 + 3 + 8 + 4 + 619 + 9 + 7 = 666.

It is not a de Polignac number, because 385038461997 - 215 = 385038429229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385038461597) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10857247 + ... + 10892652.

It is an arithmetic number, because the mean of its divisors is an integer number (26578377800).

Almost surely, 2385038461997 is an apocalyptic number.

It is an amenable number.

385038461997 is a deficient number, since it is larger than the sum of its proper divisors (252842605203).

385038461997 is a wasteful number, since it uses less digits than its factorization.

385038461997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21750193 (or 21750190 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 385038461997 in words is "three hundred eighty-five billion, thirty-eight million, four hundred sixty-one thousand, nine hundred ninety-seven".

Divisors: 1 3 7 9 21 63 281 843 1967 2529 5901 17703 21749899 65249697 152249293 195749091 456747879 1370243637 6111721619 18335164857 42782051333 55005494571 128346153999 385038461997