Search a number
-
+
61902413 = 435632557
BaseRepresentation
bin1110110000100…
…0111001001101
311022110222010222
43230020321031
5111321334123
610050441125
71351106336
oct354107115
9138428128
1061902413
1131a40221
12188931a5
13ca94b61
14831528d
15567b6c8
hex3b08e4d

61902413 has 8 divisors (see below), whose sum is σ = 63479328. Its totient is φ = 60331824.

The previous prime is 61902409. The next prime is 61902419. The reversal of 61902413 is 31420916.

61902413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61902413 - 22 = 61902409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61902419) 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 7 ways as a sum of consecutive naturals, for example, 22931 + ... + 25487.

It is an arithmetic number, because the mean of its divisors is an integer number (7934916).

Almost surely, 261902413 is an apocalyptic number.

It is an amenable number.

61902413 is a deficient number, since it is larger than the sum of its proper divisors (1576915).

61902413 is a wasteful number, since it uses less digits than its factorization.

61902413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 61902413 is about 7867.8086529859. The cubic root of 61902413 is about 395.5813966721.

The spelling of 61902413 in words is "sixty-one million, nine hundred two thousand, four hundred thirteen".

Divisors: 1 43 563 2557 24209 109951 1439591 61902413