Search a number
-
+
31328184670 = 2529108028223
BaseRepresentation
bin11101001011010011…
…100010100101011110
32222212022111200012221
4131023103202211132
51003130003402140
622220355415554
72156225114236
oct351323424536
988768450187
1031328184670
1112316a41912
1260a38b45ba
132c535ba9a3
1417329c4cc6
15c3553514a
hex74b4e295e

31328184670 has 16 divisors (see below), whose sum is σ = 58335240960. Its totient is φ = 12099160864.

The previous prime is 31328184661. The next prime is 31328184673. The reversal of 31328184670 is 7648182313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31328184673) 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 7 ways as a sum of consecutive naturals, for example, 54013822 + ... + 54014401.

It is an arithmetic number, because the mean of its divisors is an integer number (3645952560).

Almost surely, 231328184670 is an apocalyptic number.

31328184670 is a deficient number, since it is larger than the sum of its proper divisors (27007056290).

31328184670 is a wasteful number, since it uses less digits than its factorization.

31328184670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108028259.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 31328184670 in words is "thirty-one billion, three hundred twenty-eight million, one hundred eighty-four thousand, six hundred seventy".

Divisors: 1 2 5 10 29 58 145 290 108028223 216056446 540141115 1080282230 3132818467 6265636934 15664092335 31328184670