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20435070107 = 231985344753
BaseRepresentation
bin10011000010000001…
…100110110010011011
31221202011012010020102
4103002001212302123
5313322334220412
613215430250015
71322254141604
oct230201466233
957664163212
1020435070107
1187370786a1
123b637b690b
131c08877b7a
14dbbdb8dab
157e905a8c2
hex4c2066c9b

20435070107 has 8 divisors (see below), whose sum is σ = 21325101984. Its totient is φ = 19545167488.

The previous prime is 20435070059. The next prime is 20435070113. The reversal of 20435070107 is 70107053402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20435070107 - 26 = 20435070043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20435070107.

It is not an unprimeable number, because it can be changed into a prime (20435070157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434243 + ... + 478995.

It is an arithmetic number, because the mean of its divisors is an integer number (2665637748).

Almost surely, 220435070107 is an apocalyptic number.

20435070107 is a deficient number, since it is larger than the sum of its proper divisors (890031877).

20435070107 is a wasteful number, since it uses less digits than its factorization.

20435070107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64629.

The product of its (nonzero) digits is 5880, while the sum is 29.

The spelling of 20435070107 in words is "twenty billion, four hundred thirty-five million, seventy thousand, one hundred seven".

Divisors: 1 23 19853 44753 456619 1029319 888481309 20435070107