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61307070288 = 2431518819601
BaseRepresentation
bin111001000110001011…
…111010011101010000
312212020121001212002220
4321012023322131100
52001024102222123
644055235141040
74300150333152
oct710613723520
9185217055086
1061307070288
1124000274342
12ba6b744780
135a2049c369
142d782d4ad2
1518dc38cce3
hexe462fa750

61307070288 has 80 divisors (see below), whose sum is σ = 159623033472. Its totient is φ = 20275200000.

The previous prime is 61307070287. The next prime is 61307070311. The reversal of 61307070288 is 88207070316.

61307070288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61307070281) 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, 6380688 + ... + 6390288.

Almost surely, 261307070288 is an apocalyptic number.

It is an amenable number.

61307070288 is an abundant number, since it is smaller than the sum of its proper divisors (98315963184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61307070288 is a wasteful number, since it uses less digits than its factorization.

61307070288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10644 (or 10638 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 61307070288 in words is "sixty-one billion, three hundred seven million, seventy thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 151 302 453 604 881 906 1208 1762 1812 2416 2643 3524 3624 5286 7048 7248 9601 10572 14096 19202 21144 28803 38404 42288 57606 76808 115212 133031 153616 230424 266062 399093 460848 532124 798186 1064248 1449751 1596372 2128496 2899502 3192744 4349253 5799004 6385488 8458481 8698506 11598008 16916962 17397012 23196016 25375443 33833924 34794024 50750886 67667848 69588048 101501772 135335696 203003544 406007088 1277230631 2554461262 3831691893 5108922524 7663383786 10217845048 15326767572 20435690096 30653535144 61307070288