Search a number
-
+
164264843170 = 25181421721521
BaseRepresentation
bin1001100011111011110…
…0101001011110100010
3120200222220021121222101
42120332330221132202
510142403244440140
6203243501401014
714603431062211
oct2307674513642
9520886247871
10164264843170
1163734248a3a
1227a03b6916a
131264a9c9b6c
147d440c9078
1544160c999a
hex263ef297a2

164264843170 has 32 divisors (see below), whose sum is σ = 297394611696. Its totient is φ = 65324390400.

The previous prime is 164264843143. The next prime is 164264843177. The reversal of 164264843170 is 71348462461.

It can be written as a sum of positive squares in 8 ways, for example, as 53171286921 + 111093556249 = 230589^2 + 333307^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 164264843170.

It is not an unprimeable number, because it can be changed into a prime (164264843177) 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, 7622010 + ... + 7643530.

Almost surely, 2164264843170 is an apocalyptic number.

164264843170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164264843170 is a deficient number, since it is larger than the sum of its proper divisors (133129768526).

164264843170 is a wasteful number, since it uses less digits than its factorization.

164264843170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25926.

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 164264843170 in words is "one hundred sixty-four billion, two hundred sixty-four million, eight hundred forty-three thousand, one hundred seventy".

Divisors: 1 2 5 10 181 362 905 1810 4217 8434 21085 21521 42170 43042 107605 215210 763277 1526554 3816385 3895301 7632770 7790602 19476505 38953010 90754057 181508114 453770285 907540570 16426484317 32852968634 82132421585 164264843170