Search a number
-
+
61214085 = 3251360313
BaseRepresentation
bin1110100110000…
…0110110000101
311021011222221100
43221200312011
5111132322320
610024010313
71342211502
oct351406605
9137158840
1061214085
1131610059
1218600999
13c8b376a
1481b64a9
155592790
hex3a60d85

61214085 has 12 divisors (see below), whose sum is σ = 106104492. Its totient is φ = 32647488.

The previous prime is 61214053. The next prime is 61214089. The reversal of 61214085 is 58041216.

61214085 is a `hidden beast` number, since 612 + 1 + 40 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 45077796 + 16136289 = 6714^2 + 4017^2 .

It is not a de Polignac number, because 61214085 - 25 = 61214053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61214089) 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, 680112 + ... + 680201.

It is an arithmetic number, because the mean of its divisors is an integer number (8842041).

Almost surely, 261214085 is an apocalyptic number.

It is an amenable number.

61214085 is a deficient number, since it is larger than the sum of its proper divisors (44890407).

61214085 is a wasteful number, since it uses less digits than its factorization.

61214085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360324 (or 1360321 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 61214085 is about 7823.9430596088. The cubic root of 61214085 is about 394.1096970101.

The spelling of 61214085 in words is "sixty-one million, two hundred fourteen thousand, eighty-five".

Divisors: 1 3 5 9 15 45 1360313 4080939 6801565 12242817 20404695 61214085