Search a number
-
+
100970971 = 197512543
BaseRepresentation
bin1100000010010…
…11000111011011
321000222212010121
412001023013123
5201322032341
614004054111
72334145003
oct601130733
9230885117
10100970971
1151aa4a92
1229994337
1317bc374a
14d5a5003
158ce74d1
hex604b1db

100970971 has 4 divisors (see below), whose sum is σ = 101483712. Its totient is φ = 100458232.

The previous prime is 100970957. The next prime is 100970977. The reversal of 100970971 is 179079001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100970971 - 27 = 100970843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100970977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256075 + ... + 256468.

It is an arithmetic number, because the mean of its divisors is an integer number (25370928).

Almost surely, 2100970971 is an apocalyptic number.

100970971 is a deficient number, since it is larger than the sum of its proper divisors (512741).

100970971 is an equidigital number, since it uses as much as digits as its factorization.

100970971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512740.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 100970971 is about 10048.4312706014. The cubic root of 100970971 is about 465.6563298950.

The spelling of 100970971 in words is "one hundred million, nine hundred seventy thousand, nine hundred seventy-one".

Divisors: 1 197 512543 100970971