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29092213940 = 2256123846077
BaseRepresentation
bin11011000110000001…
…111111010010110100
32210002111010121000012
4123012001333102310
5434040101321230
621210443035352
72046634511156
oct330601772264
983074117005
1029092213940
1111379883a19
12577ab0bb58
1329882a379a
14159da62ad6
15b540b0395
hex6c607f4b4

29092213940 has 24 divisors (see below), whose sum is σ = 62095187112. Its totient is φ = 11446116480.

The previous prime is 29092213921. The next prime is 29092213957. The reversal of 29092213940 is 4931229092.

It can be written as a sum of positive squares in 4 ways, for example, as 2753520676 + 26338693264 = 52474^2 + 162292^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11921819 + ... + 11924258.

It is an arithmetic number, because the mean of its divisors is an integer number (2587299463).

Almost surely, 229092213940 is an apocalyptic number.

29092213940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29092213940 is an abundant number, since it is smaller than the sum of its proper divisors (33002973172).

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

29092213940 is a wasteful number, since it uses less digits than its factorization.

29092213940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23846147 (or 23846145 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 29092213940 in words is "twenty-nine billion, ninety-two million, two hundred thirteen thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 23846077 47692154 95384308 119230385 238460770 476921540 1454610697 2909221394 5818442788 7273053485 14546106970 29092213940