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29759961220 = 22511405733343
BaseRepresentation
bin11011101101110101…
…001111100010000100
32211211000121200001221
4123231311033202010
5441422022224340
621401015130124
72102323332223
oct335565174204
984730550057
1029759961220
11116917a4380
125926673944
132a6372c712
141624602cba
15b92a1144a
hex6edd4f884

29759961220 has 48 divisors (see below), whose sum is σ = 68196215808. Its totient is φ = 10818812160.

The previous prime is 29759961169. The next prime is 29759961223. The reversal of 29759961220 is 2216995792.

It is not an unprimeable number, because it can be changed into a prime (29759961223) 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 15 ways as a sum of consecutive naturals, for example, 875869 + ... + 909211.

It is an arithmetic number, because the mean of its divisors is an integer number (1420754496).

Almost surely, 229759961220 is an apocalyptic number.

29759961220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29759961220 is an abundant number, since it is smaller than the sum of its proper divisors (38436254588).

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

29759961220 is a wasteful number, since it uses less digits than its factorization.

29759961220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37420 (or 37418 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 29759961220 in words is "twenty-nine billion, seven hundred fifty-nine million, nine hundred sixty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 4057 8114 16228 20285 33343 40570 44627 66686 81140 89254 133372 166715 178508 223135 333430 366773 446270 666860 733546 892540 1467092 1833865 3667730 7335460 135272551 270545102 541090204 676362755 1352725510 1487998061 2705451020 2975996122 5951992244 7439990305 14879980610 29759961220