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164440108 = 227127131353
BaseRepresentation
bin10011100110100…
…10100000101100
3102110102102102101
421303102200230
5314044040413
624152304444
74034501140
oct1163224054
9373372371
10164440108
1184905318
12470a2124
13280b6751
1417ba7220
15e682edd
hex9cd282c

164440108 has 48 divisors (see below), whose sum is σ = 334946304. Its totient is φ = 69189120.

The previous prime is 164440051. The next prime is 164440109. The reversal of 164440108 is 801044461.

It is a super-3 number, since 3×1644401083 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (164440109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465660 + ... + 466012.

It is an arithmetic number, because the mean of its divisors is an integer number (6978048).

Almost surely, 2164440108 is an apocalyptic number.

It is an amenable number.

164440108 is an abundant number, since it is smaller than the sum of its proper divisors (170506196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164440108 is a wasteful number, since it uses less digits than its factorization.

164440108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 164440108 is about 12823.4202925741. The cubic root of 164440108 is about 547.8595685055.

Adding to 164440108 its reverse (801044461), we get a palindrome (965484569).

The spelling of 164440108 in words is "one hundred sixty-four million, four hundred forty thousand, one hundred eight".

Divisors: 1 2 4 7 14 28 127 131 254 262 353 508 524 706 889 917 1412 1778 1834 2471 3556 3668 4942 9884 16637 33274 44831 46243 66548 89662 92486 116459 179324 184972 232918 313817 323701 465836 627634 647402 1255268 1294804 5872861 11745722 23491444 41110027 82220054 164440108