Search a number
-
+
29031690552904 = 23131788371858169
BaseRepresentation
bin1101001100111011101111…
…00110100100011001001000
310210210101212102122012222201
412212131313212210121020
512301123400240143104
6141424550255125544
76054320233033534
oct646356746443110
9123711772565881
1029031690552904
1192832a850a656
12330a6525138b4
1313278a4858080
147251d9ad4bc4
153552aa7c60a4
hex1a67779a4648

29031690552904 has 64 divisors (see below), whose sum is σ = 62077074418800. Its totient is φ = 12609617240064.

The previous prime is 29031690552899. The next prime is 29031690552959. The reversal of 29031690552904 is 40925509613092.

It can be written as a sum of positive squares in 8 ways, for example, as 28877704944804 + 153985608100 = 5373798^2 + 392410^2 .

It is a super-2 number, since 2×290316905529042 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14694732 + ... + 16552900.

Almost surely, 229031690552904 is an apocalyptic number.

It is an amenable number.

29031690552904 is an abundant number, since it is smaller than the sum of its proper divisors (33045383865896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29031690552904 is a wasteful number, since it uses less digits than its factorization.

29031690552904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867042 (or 1867038 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 55.

The spelling of 29031690552904 in words is "twenty-nine trillion, thirty-one billion, six hundred ninety million, five hundred fifty-two thousand, nine hundred four".

Divisors: 1 2 4 8 13 17 26 34 52 68 104 136 221 442 884 1768 8837 17674 35348 70696 114881 150229 229762 300458 459524 600916 919048 1201832 1858169 1952977 3716338 3905954 7432676 7811908 14865352 15623816 24156197 31588873 48312394 63177746 96624788 126355492 193249576 252710984 410655349 821310698 1642621396 3285242792 16420639453 32841278906 65682557812 131365115624 213468312889 279150870701 426936625778 558301741402 853873251556 1116603482804 1707746503112 2233206965608 3628961319113 7257922638226 14515845276452 29031690552904