Search a number
BaseRepresentation
bin1110111111000001
310010012020
432333001
53431002
61152053
7343641
oct167701
9103166
1061377
1142128
122b629
1321c24
1418521
15132bc
hexefc1

61377 has 8 divisors (see below), whose sum is σ = 84000. Its totient is φ = 39840.

The previous prime is 61363. The next prime is 61379. The reversal of 61377 is 77316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61377 - 28 = 61121 is a prime.

It is a super-2 number, since 2×613772 = 7534272258, which contains 22 as substring.

61377 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 61377.

It is not an unprimeable number, because it can be changed into a prime (61379) 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, 127 + ... + 372.

It is an arithmetic number, because the mean of its divisors is an integer number (10500).

261377 is an apocalyptic number.

It is an amenable number.

61377 is a deficient number, since it is larger than the sum of its proper divisors (22623).

61377 is a wasteful number, since it uses less digits than its factorization.

61377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543.

The product of its digits is 882, while the sum is 24.

The square root of 61377 is about 247.7438192973. The cubic root of 61377 is about 39.4459014795.

The spelling of 61377 in words is "sixty-one thousand, three hundred seventy-seven".

Divisors: 1 3 41 123 499 1497 20459 61377