Search a number
-
+
102255461 = 7117191847
BaseRepresentation
bin1100001100001…
…00101101100101
321010102010010022
412012010231211
5202134133321
614051404525
72351104610
oct606045545
9233363108
10102255461
11527a2050
122a2b3745
13182532b9
14d81b177
158e9cdab
hex6184b65

102255461 has 16 divisors (see below), whose sum is σ = 127733760. Its totient is φ = 79525680.

The previous prime is 102255403. The next prime is 102255469. The reversal of 102255461 is 164552201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102255461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102255461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102255469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54440 + ... + 56286.

It is an arithmetic number, because the mean of its divisors is an integer number (7983360).

Almost surely, 2102255461 is an apocalyptic number.

102255461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102255461 is a deficient number, since it is larger than the sum of its proper divisors (25478299).

102255461 is a wasteful number, since it uses less digits than its factorization.

102255461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 102255461 is about 10112.1442335441. The cubic root of 102255461 is about 467.6226122768.

The spelling of 102255461 in words is "one hundred two million, two hundred fifty-five thousand, four hundred sixty-one".

Divisors: 1 7 11 77 719 1847 5033 7909 12929 20317 55363 142219 1327993 9295951 14607923 102255461