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101970811 = 1731193493
BaseRepresentation
bin1100001001111…
…11001101111011
321002212122122201
412010333031323
5202101031221
614041331031
72345510665
oct604771573
9232778581
10101970811
11526181a8
122a196a77
1318183877
14d785535
158e43891
hex613f37b

101970811 has 8 divisors (see below), whose sum is σ = 111452544. Its totient is φ = 92876160.

The previous prime is 101970809. The next prime is 101970857. The reversal of 101970811 is 118079101.

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 101970811 - 21 = 101970809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101970811.

It is not an unprimeable number, because it can be changed into a prime (101970611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96220 + ... + 97273.

It is an arithmetic number, because the mean of its divisors is an integer number (13931568).

Almost surely, 2101970811 is an apocalyptic number.

101970811 is a deficient number, since it is larger than the sum of its proper divisors (9481733).

101970811 is a wasteful number, since it uses less digits than its factorization.

101970811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193541.

The product of its (nonzero) digits is 504, while the sum is 28.

The square root of 101970811 is about 10098.0597641329. The cubic root of 101970811 is about 467.1882997589.

The spelling of 101970811 in words is "one hundred one million, nine hundred seventy thousand, eight hundred eleven".

Divisors: 1 17 31 527 193493 3289381 5998283 101970811