Search a number
-
+
61950393 = 3319197613
BaseRepresentation
bin1110110001010…
…0100110111001
311022120101222000
43230110212321
5111324403033
610051451213
71351366251
oct354244671
9138511860
1061950393
1131a7327a
12188b6b09
13cab094b
148328961
15568aa13
hex3b149b9

61950393 has 32 divisors (see below), whose sum is σ = 97257600. Its totient is φ = 38864448.

The previous prime is 61950391. The next prime is 61950419. The reversal of 61950393 is 39305916.

61950393 is a `hidden beast` number, since 61 + 9 + 503 + 93 = 666.

It is not a de Polignac number, because 61950393 - 21 = 61950391 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61950391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100755 + ... + 101367.

It is an arithmetic number, because the mean of its divisors is an integer number (3039300).

Almost surely, 261950393 is an apocalyptic number.

It is an amenable number.

61950393 is a deficient number, since it is larger than the sum of its proper divisors (35307207).

61950393 is a wasteful number, since it uses less digits than its factorization.

61950393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 832 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 61950393 is about 7870.8571960111. The cubic root of 61950393 is about 395.6835741310.

The spelling of 61950393 in words is "sixty-one million, nine hundred fifty thousand, three hundred ninety-three".

Divisors: 1 3 9 19 27 57 171 197 513 591 613 1773 1839 3743 5319 5517 11229 11647 16551 33687 34941 101061 104823 120761 314469 362283 1086849 2294459 3260547 6883377 20650131 61950393