Search a number
-
+
1229885086 = 21940979133
BaseRepresentation
bin100100101001110…
…1000111010011110
310011201020122011111
41021103220322132
510004322310321
6322012412234
742322564543
oct11123507236
93151218144
101229885086
11581268961
122a3a7707a
13167a59071
14b94acbca
1572e905e1
hex494e8e9e

1229885086 has 16 divisors (see below), whose sum is σ = 1946696400. Its totient is φ = 581145408.

The previous prime is 1229885081. The next prime is 1229885101. The reversal of 1229885086 is 6805889221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229885081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24025 + ... + 55108.

It is an arithmetic number, because the mean of its divisors is an integer number (121668525).

Almost surely, 21229885086 is an apocalyptic number.

1229885086 is a deficient number, since it is larger than the sum of its proper divisors (716811314).

1229885086 is a wasteful number, since it uses less digits than its factorization.

1229885086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79563.

The product of its (nonzero) digits is 552960, while the sum is 49.

The square root of 1229885086 is about 35069.7175067037. The cubic root of 1229885086 is about 1071.4079018218.

The spelling of 1229885086 in words is "one billion, two hundred twenty-nine million, eight hundred eighty-five thousand, eighty-six".

Divisors: 1 2 19 38 409 818 7771 15542 79133 158266 1503527 3007054 32365397 64730794 614942543 1229885086