Search a number
-
+
102541111 = 437133587
BaseRepresentation
bin1100001110010…
…10011100110111
321010221121221221
412013022130313
5202222303421
614101451211
72353404451
oct607123467
9233847857
10102541111
1152977722
122a410b07
131832331a
14d8932d1
159007841
hex61ca737

102541111 has 8 divisors (see below), whose sum is σ = 106406784. Its totient is φ = 98742840.

The previous prime is 102541099. The next prime is 102541133. The reversal of 102541111 is 111145201.

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 102541111 - 219 = 102016823 is a prime.

It is a super-2 number, since 2×1025411112 = 21029358890228642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102541141) 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, 13741 + ... + 19846.

It is an arithmetic number, because the mean of its divisors is an integer number (13300848).

Almost surely, 2102541111 is an apocalyptic number.

102541111 is a deficient number, since it is larger than the sum of its proper divisors (3865673).

102541111 is an equidigital number, since it uses as much as digits as its factorization.

102541111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33701.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 102541111 is about 10126.2584896891. The cubic root of 102541111 is about 468.0576410729.

Adding to 102541111 its reverse (111145201), we get a palindrome (213686312).

The spelling of 102541111 in words is "one hundred two million, five hundred forty-one thousand, one hundred eleven".

Divisors: 1 43 71 3053 33587 1444241 2384677 102541111