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29145743208 = 2332404801989
BaseRepresentation
bin11011001001001110…
…001011111101101000
32210020012212011100200
4123021032023331220
5434142302240313
621220034232200
72051154505161
oct331116137550
983205764320
1029145743208
11113a701528a
125794a25660
1329963c63ca
1415a6bd8768
15b58b35b73
hex6c938bf68

29145743208 has 24 divisors (see below), whose sum is σ = 78936388050. Its totient is φ = 9715247712.

The previous prime is 29145743191. The next prime is 29145743257. The reversal of 29145743208 is 80234754192.

It can be written as a sum of positive squares in only one way, i.e., 26393901444 + 2751841764 = 162462^2 + 52458^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 202400923 + ... + 202401066.

Almost surely, 229145743208 is an apocalyptic number.

It is an amenable number.

29145743208 is an abundant number, since it is smaller than the sum of its proper divisors (49790644842).

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

29145743208 is a wasteful number, since it uses less digits than its factorization.

29145743208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404802001 (or 404801994 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 29145743208 in words is "twenty-nine billion, one hundred forty-five million, seven hundred forty-three thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 404801989 809603978 1214405967 1619207956 2428811934 3238415912 3643217901 4857623868 7286435802 9715247736 14572871604 29145743208