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164144414 = 2723974219
BaseRepresentation
bin10011100100010…
…10010100011110
3102102212101210202
421302022110132
5314010110124
624142103502
74032130100
oct1162122436
9372771722
10164144414
1184723145
1246b7ab92
1328011c95
1417b2b570
15e6255ae
hex9c8a51e

164144414 has 24 divisors (see below), whose sum is σ = 287204760. Its totient is φ = 70153776.

The previous prime is 164144413. The next prime is 164144417. The reversal of 164144414 is 414441461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164144413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36797 + ... + 41015.

It is an arithmetic number, because the mean of its divisors is an integer number (11966865).

Almost surely, 2164144414 is an apocalyptic number.

164144414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

164144414 is a deficient number, since it is larger than the sum of its proper divisors (123060346).

164144414 is a wasteful number, since it uses less digits than its factorization.

164144414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632 (or 4625 counting only the distinct ones).

The product of its digits is 6144, while the sum is 29.

The square root of 164144414 is about 12811.8856535640. The cubic root of 164144414 is about 547.5309868967.

Adding to 164144414 its reverse (414441461), we get a palindrome (578585875).

The spelling of 164144414 in words is "one hundred sixty-four million, one hundred forty-four thousand, four hundred fourteen".

Divisors: 1 2 7 14 49 98 397 794 2779 4219 5558 8438 19453 29533 38906 59066 206731 413462 1674943 3349886 11724601 23449202 82072207 164144414