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16398422967 = 3192236911867
BaseRepresentation
bin11110100010110110…
…00001001110110111
31120022211112012100210
433101123001032313
5232040444013332
611311111040503
71120240203213
oct172133011667
946284465323
1016398422967
116a55533983
123217970133
131714494a74
14b17c45943
1565e996ecc
hex3d16c13b7

16398422967 has 32 divisors (see below), whose sum is σ = 23164395520. Its totient is φ = 10290019680.

The previous prime is 16398422899. The next prime is 16398422983. The reversal of 16398422967 is 76922489361.

It is not a de Polignac number, because 16398422967 - 27 = 16398422839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16398422267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8782368 + ... + 8784234.

It is an arithmetic number, because the mean of its divisors is an integer number (723887360).

Almost surely, 216398422967 is an apocalyptic number.

16398422967 is a deficient number, since it is larger than the sum of its proper divisors (6765972553).

16398422967 is a wasteful number, since it uses less digits than its factorization.

16398422967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803.

The product of its digits is 7838208, while the sum is 57.

The spelling of 16398422967 in words is "sixteen billion, three hundred ninety-eight million, four hundred twenty-two thousand, nine hundred sixty-seven".

Divisors: 1 3 19 57 223 669 691 1867 2073 4237 5601 12711 13129 35473 39387 106419 154093 416341 462279 1249023 1290097 2927767 3870291 7910479 8783301 23731437 24511843 73535529 287691631 863074893 5466140989 16398422967