Search a number
-
+
61914901 = 1719672861
BaseRepresentation
bin1110110000101…
…1111100010101
311022111121021111
43230023330111
5111322234101
610051015021
71351160626
oct354137425
9138447244
1061914901
1131a49644
121889a471
13ca9a749
148319a4d
155680251
hex3b0bf15

61914901 has 16 divisors (see below), whose sum is σ = 70061760. Its totient is φ = 54362880.

The previous prime is 61914899. The next prime is 61914989. The reversal of 61914901 is 10941916.

It is a cyclic number.

It is not a de Polignac number, because 61914901 - 21 = 61914899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61914301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20211 + ... + 23071.

It is an arithmetic number, because the mean of its divisors is an integer number (4378860).

Almost surely, 261914901 is an apocalyptic number.

It is an amenable number.

61914901 is a deficient number, since it is larger than the sum of its proper divisors (8146859).

61914901 is a wasteful number, since it uses less digits than its factorization.

61914901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 61914901 is about 7868.6022265711. The cubic root of 61914901 is about 395.6079960031.

The spelling of 61914901 in words is "sixty-one million, nine hundred fourteen thousand, nine hundred one".

Divisors: 1 17 19 67 323 1139 1273 2861 21641 48637 54359 191687 924103 3258679 3642053 61914901