[go: up one dir, main page]

Search a number
-
+
61672501 = 115606591
BaseRepresentation
bin1110101101000…
…0110000110101
311022001021202201
43223100300311
5111242010001
610041504501
71346131132
oct353206065
9138037681
1061672501
11318a3510
12187a2131
13ca14307
148295589
155633501
hex3ad0c35

61672501 has 4 divisors (see below), whose sum is σ = 67279104. Its totient is φ = 56065900.

The previous prime is 61672489. The next prime is 61672543. The reversal of 61672501 is 10527616.

61672501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 61672501 - 25 = 61672469 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61672501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61672561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2803285 + ... + 2803306.

It is an arithmetic number, because the mean of its divisors is an integer number (16819776).

Almost surely, 261672501 is an apocalyptic number.

It is an amenable number.

61672501 is a deficient number, since it is larger than the sum of its proper divisors (5606603).

61672501 is a wasteful number, since it uses less digits than its factorization.

61672501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606602.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 61672501 is about 7853.1841312935. The cubic root of 61672501 is about 395.0910456154.

It can be divided in two parts, 6167 and 2501, that added together give a palindrome (8668).

The spelling of 61672501 in words is "sixty-one million, six hundred seventy-two thousand, five hundred one".

Divisors: 1 11 5606591 61672501