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61052061 = 378335027
BaseRepresentation
bin1110100011100…
…1010010011101
311020212202200110
43220321102131
5111112131221
610020320233
71340635230
oct350712235
9136782613
1061052061
113150a354
1218543079
13c857aa5
148173417
15555e776
hex3a3949d

61052061 has 16 divisors (see below), whose sum is σ = 94155264. Its totient is φ = 34465584.

The previous prime is 61052059. The next prime is 61052063. The reversal of 61052061 is 16025016.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61052059) and next prime (61052063).

It is not a de Polignac number, because 61052061 - 21 = 61052059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61052063) 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, 15771 + ... + 19256.

It is an arithmetic number, because the mean of its divisors is an integer number (5884704).

Almost surely, 261052061 is an apocalyptic number.

It is an amenable number.

61052061 is a deficient number, since it is larger than the sum of its proper divisors (33103203).

61052061 is a wasteful number, since it uses less digits than its factorization.

61052061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35120.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 61052061 is about 7813.5818290973. The cubic root of 61052061 is about 393.7616744334.

Adding to 61052061 its reverse (16025016), we get a palindrome (77077077).

The spelling of 61052061 in words is "sixty-one million, fifty-two thousand, sixty-one".

Divisors: 1 3 7 21 83 249 581 1743 35027 105081 245189 735567 2907241 8721723 20350687 61052061