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29105483988 = 2237353981569
BaseRepresentation
bin11011000110110100…
…100111000011010100
32210010102002210002110
4123012310213003110
5434102000441423
621212035311020
72050155350310
oct330664470324
983112083073
1029105483988
11113863179a9
12578344b470
13298ac6b899
1415a1718b40
15b55332193
hex6c6d270d4

29105483988 has 48 divisors (see below), whose sum is σ = 77834574720. Its totient is φ = 8292286464.

The previous prime is 29105483959. The next prime is 29105483989. The reversal of 29105483988 is 88938450192.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29105483989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461133 + ... + 520436.

It is an arithmetic number, because the mean of its divisors is an integer number (1621553640).

Almost surely, 229105483988 is an apocalyptic number.

29105483988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29105483988 is an abundant number, since it is smaller than the sum of its proper divisors (48729090732).

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

29105483988 is a wasteful number, since it uses less digits than its factorization.

29105483988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981936 (or 981934 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 29105483988 in words is "twenty-nine billion, one hundred five million, four hundred eighty-three thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 353 706 1059 1412 2118 2471 4236 4942 7413 9884 14826 29652 981569 1963138 2944707 3926276 5889414 6870983 11778828 13741966 20612949 27483932 41225898 82451796 346493857 692987714 1039481571 1385975428 2078963142 2425456999 4157926284 4850913998 7276370997 9701827996 14552741994 29105483988