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101881241 = 7211189019
BaseRepresentation
bin1100001001010…
…01010110011001
321002201002210022
412010221112121
5202040144431
614035400225
72344655600
oct604512631
9232632708
10101881241
1152566980
122a153075
1318151b77
14d760a37
158e2707b
hex6129599

101881241 has 12 divisors (see below), whose sum is σ = 129289680. Its totient is φ = 79387560.

The previous prime is 101881231. The next prime is 101881261. The reversal of 101881241 is 142188101.

It is not a de Polignac number, because 101881241 - 26 = 101881177 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 101881241.

It is not an unprimeable number, because it can be changed into a prime (101881201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93971 + ... + 95048.

It is an arithmetic number, because the mean of its divisors is an integer number (10774140).

Almost surely, 2101881241 is an apocalyptic number.

101881241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101881241 is a deficient number, since it is larger than the sum of its proper divisors (27408439).

101881241 is a wasteful number, since it uses less digits than its factorization.

101881241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189044 (or 189037 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 101881241 is about 10093.6237793966. The cubic root of 101881241 is about 467.0514687254.

The spelling of 101881241 in words is "one hundred one million, eight hundred eighty-one thousand, two hundred forty-one".

Divisors: 1 7 11 49 77 539 189019 1323133 2079209 9261931 14554463 101881241