Search a number
-
+
20131032302 = 2232291911053
BaseRepresentation
bin10010101111111001…
…110010110011101110
31220221222002101202222
4102233321302303232
5312212021013202
613125325515342
71311602644163
oct225771626356
956858071688
1020131032302
1185a0496587
123a99a12b52
131b8a895244
14d8d87406a
157cc5004a2
hex4afe72cee

20131032302 has 16 divisors (see below), whose sum is σ = 31647054240. Its totient is φ = 9585836832.

The previous prime is 20131032269. The next prime is 20131032319. The reversal of 20131032302 is 20323013102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944993 + ... + 966060.

It is an arithmetic number, because the mean of its divisors is an integer number (1977940890).

Almost surely, 220131032302 is an apocalyptic number.

20131032302 is a deficient number, since it is larger than the sum of its proper divisors (11516021938).

20131032302 is a wasteful number, since it uses less digits than its factorization.

20131032302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911307.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20131032302 its reverse (20323013102), we get a palindrome (40454045404).

The spelling of 20131032302 in words is "twenty billion, one hundred thirty-one million, thirty-two thousand, three hundred two".

Divisors: 1 2 23 46 229 458 5267 10534 1911053 3822106 43954219 87908438 437631137 875262274 10065516151 20131032302