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61338361 = 717350651
BaseRepresentation
bin1110100111111…
…1001011111001
311021102022102011
43221333023321
5111200311421
610030405521
71343240020
oct351771371
9137368364
1061338361
1131695467
12186608a1
13c9281b6
1482098b7
1555b94e1
hex3a7f2f9

61338361 has 8 divisors (see below), whose sum is σ = 70507584. Its totient is φ = 52270800.

The previous prime is 61338359. The next prime is 61338373. The reversal of 61338361 is 16383316.

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 61338361 - 21 = 61338359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61330361) 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, 24115 + ... + 26536.

It is an arithmetic number, because the mean of its divisors is an integer number (8813448).

Almost surely, 261338361 is an apocalyptic number.

It is an amenable number.

61338361 is a deficient number, since it is larger than the sum of its proper divisors (9169223).

61338361 is a wasteful number, since it uses less digits than its factorization.

61338361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50831.

The product of its digits is 7776, while the sum is 31.

The square root of 61338361 is about 7831.8810639590. The cubic root of 61338361 is about 394.3762221023.

The spelling of 61338361 in words is "sixty-one million, three hundred thirty-eight thousand, three hundred sixty-one".

Divisors: 1 7 173 1211 50651 354557 8762623 61338361