Search a number
-
+
61103077 = 731281581
BaseRepresentation
bin1110100100010…
…1101111100101
311020222100122221
43221011233211
5111120244302
610021352341
71341240040
oct351055745
9136870587
1061103077
1131544712
12185686b1
13c875089
148187c57
15556e937
hex3a45be5

61103077 has 8 divisors (see below), whose sum is σ = 72084992. Its totient is φ = 50684400.

The previous prime is 61103071. The next prime is 61103101. The reversal of 61103077 is 77030116.

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 61103077 - 215 = 61070309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61103071) 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, 140574 + ... + 141007.

It is an arithmetic number, because the mean of its divisors is an integer number (9010624).

Almost surely, 261103077 is an apocalyptic number.

It is an amenable number.

61103077 is a deficient number, since it is larger than the sum of its proper divisors (10981915).

61103077 is a wasteful number, since it uses less digits than its factorization.

61103077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281619.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 61103077 is about 7816.8457193423. The cubic root of 61103077 is about 393.8713215801.

The spelling of 61103077 in words is "sixty-one million, one hundred three thousand, seventy-seven".

Divisors: 1 7 31 217 281581 1971067 8729011 61103077