Search a number
-
+
29883107188870 = 25132916747464393
BaseRepresentation
bin1101100101101101100111…
…11111010010000010000110
310220210210112010020200210221
412302312303333102002012
512404101100420020440
6143320035424334554
76202661153032405
oct662666377220206
9126723463220727
1029883107188870
119581399a58a21
12342766817445a
131389c70bc90a0
147544c898d63c
1536c4dc9dbd4a
hex1b2db3fd2086

29883107188870 has 64 divisors (see below), whose sum is σ = 60283577531520. Its totient is φ = 10589495712768.

The previous prime is 29883107188867. The next prime is 29883107188877. The reversal of 29883107188870 is 7888170138892.

It is a super-2 number, since 2×298831071888702 (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29883107188870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29883107188877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23102607 + ... + 24361786.

It is an arithmetic number, because the mean of its divisors is an integer number (941930898930).

Almost surely, 229883107188870 is an apocalyptic number.

29883107188870 is an abundant number, since it is smaller than the sum of its proper divisors (30400470342650).

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

29883107188870 is a wasteful number, since it uses less digits than its factorization.

29883107188870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47464609.

The product of its (nonzero) digits is 86704128, while the sum is 70.

The spelling of 29883107188870 in words is "twenty-nine trillion, eight hundred eighty-three billion, one hundred seven million, one hundred eighty-eight thousand, eight hundred seventy".

Divisors: 1 2 5 10 13 26 29 58 65 130 145 167 290 334 377 754 835 1670 1885 2171 3770 4342 4843 9686 10855 21710 24215 48430 62959 125918 314795 629590 47464393 94928786 237321965 474643930 617037109 1234074218 1376467397 2752934794 3085185545 6170371090 6882336985 7926553631 13764673970 15853107262 17894076161 35788152322 39632768155 79265536310 89470380805 103045197203 178940761610 206090394406 229870055299 459740110598 515225986015 1030451972030 1149350276495 2298700552990 2988310718887 5976621437774 14941553594435 29883107188870