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429970905 = 325713104999
BaseRepresentation
bin11001101000001…
…101010111011001
31002222001210012100
4121220031113121
51340033032110
6110355434013
713440456330
oct3150152731
91088053170
10429970905
11200786561
12bbbb5909
136b106270
1441166d17
1527b33bc0
hex19a0d5d9

429970905 has 48 divisors (see below), whose sum is σ = 917280000. Its totient is φ = 181436544.

The previous prime is 429970903. The next prime is 429970909. The reversal of 429970905 is 509079924.

It is not a de Polignac number, because 429970905 - 21 = 429970903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (429970903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48405 + ... + 56594.

It is an arithmetic number, because the mean of its divisors is an integer number (19110000).

Almost surely, 2429970905 is an apocalyptic number.

429970905 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

429970905 is an abundant number, since it is smaller than the sum of its proper divisors (487309095).

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

429970905 is a wasteful number, since it uses less digits than its factorization.

429970905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105030 (or 105027 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 429970905 is about 20735.7397987147. The cubic root of 429970905 is about 754.7672074423.

The spelling of 429970905 in words is "four hundred twenty-nine million, nine hundred seventy thousand, nine hundred five".

Divisors: 1 3 5 7 9 13 15 21 35 39 45 63 65 91 105 117 195 273 315 455 585 819 1365 4095 104999 314997 524995 734993 944991 1364987 1574985 2204979 3674965 4094961 4724955 6614937 6824935 9554909 11024895 12284883 20474805 28664727 33074685 47774545 61424415 85994181 143323635 429970905