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61160901 = 320386967
BaseRepresentation
bin1110100101001…
…1110111000101
311021002021222120
43221103313011
5111124122101
610022520153
71341600444
oct351236705
9137067876
1061160901
11315840aa
1218596059
13c8954a9
1481a0d5b
155581b36
hex3a53dc5

61160901 has 4 divisors (see below), whose sum is σ = 81547872. Its totient is φ = 40773932.

The previous prime is 61160851. The next prime is 61160903. The reversal of 61160901 is 10906116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61160901 - 29 = 61160389 is a prime.

It is a super-2 number, since 2×611609012 = 7481311622263602, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61160903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10193481 + ... + 10193486.

It is an arithmetic number, because the mean of its divisors is an integer number (20386968).

Almost surely, 261160901 is an apocalyptic number.

It is an amenable number.

61160901 is a deficient number, since it is larger than the sum of its proper divisors (20386971).

61160901 is a wasteful number, since it uses less digits than its factorization.

61160901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20386970.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 61160901 is about 7820.5435233109. The cubic root of 61160901 is about 393.9955271895.

The spelling of 61160901 in words is "sixty-one million, one hundred sixty thousand, nine hundred one".

Divisors: 1 3 20386967 61160901