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61162061441 = 1322937271699
BaseRepresentation
bin111000111101100010…
…101111111010000001
312211212111012122100212
4320331202233322001
52000224441431231
644033015123505
74263436641635
oct707542577201
9184774178325
1061162061441
1123a36431018
12ba2b073595
1359c942a200
142d62d48dc5
1518ce79742b
hexe3d8afe81

61162061441 has 24 divisors (see below), whose sum is σ = 66585355200. Its totient is φ = 56154136896.

The previous prime is 61162061407. The next prime is 61162061461. The reversal of 61162061441 is 14416026116.

It is not a de Polignac number, because 61162061441 - 26 = 61162061377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61162061398 and 61162061407.

It is not an unprimeable number, because it can be changed into a prime (61162061461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35998010 + ... + 35999708.

It is an arithmetic number, because the mean of its divisors is an integer number (2774389800).

Almost surely, 261162061441 is an apocalyptic number.

It is an amenable number.

61162061441 is a deficient number, since it is larger than the sum of its proper divisors (5423293759).

61162061441 is a wasteful number, since it uses less digits than its factorization.

61162061441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

Adding to 61162061441 its reverse (14416026116), we get a palindrome (75578087557).

The spelling of 61162061441 in words is "sixty-one billion, one hundred sixty-two million, sixty-one thousand, four hundred forty-one".

Divisors: 1 13 169 293 727 1699 3809 9451 22087 49517 122863 213011 287131 497807 1235173 2769143 6471491 16057249 35998859 84129383 208744237 361905689 4704773957 61162061441