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145985401606 = 21173170953189
BaseRepresentation
bin1000011111110101101…
…0000111001100000110
3111221210222021210012011
42013331122013030012
54342434230322411
6151021553444434
713355440303522
oct2077532071406
9457728253164
10145985401606
1156a03a53a40
122436227071a
13109c6919155
1470cc51ad82
153be6423c21
hex21fd687306

145985401606 has 32 divisors (see below), whose sum is σ = 242303853600. Its totient is φ = 65408474880.

The previous prime is 145985401547. The next prime is 145985401609. The reversal of 145985401606 is 606104589541.

It is a happy number.

145985401606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1459854016063 (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145985401606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145985401609) 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 15 ways as a sum of consecutive naturals, for example, 2718060 + ... + 2771248.

It is an arithmetic number, because the mean of its divisors is an integer number (7571995425).

Almost surely, 2145985401606 is an apocalyptic number.

145985401606 is a deficient number, since it is larger than the sum of its proper divisors (96318451994).

145985401606 is a wasteful number, since it uses less digits than its factorization.

145985401606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54984.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 145985401606 in words is "one hundred forty-five billion, nine hundred eighty-five million, four hundred one thousand, six hundred six".

Divisors: 1 2 11 22 73 146 803 1606 1709 3418 18799 37598 53189 106378 124757 249514 585079 1170158 1372327 2744654 3882797 7765594 42710767 85421534 90900001 181800002 999900011 1999800022 6635700073 13271400146 72992700803 145985401606