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61245313316 = 221143127725349
BaseRepresentation
bin111001000010100000…
…010101000100100100
312212002021212021110122
4321002200111010210
52000412300011231
644045151341112
74265500400525
oct710240250444
9185067767418
1061245313316
1123a79423420
12ba52b21798
135a10758785
142d7001a84c
1518d6c3e77b
hexe42815124

61245313316 has 48 divisors (see below), whose sum is σ = 119740420800. Its totient is φ = 27169000320.

The previous prime is 61245313291. The next prime is 61245313319. The reversal of 61245313316 is 61331354216.

It is not an unprimeable number, because it can be changed into a prime (61245313319) 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, 2403410 + ... + 2428758.

It is an arithmetic number, because the mean of its divisors is an integer number (2494592100).

Almost surely, 261245313316 is an apocalyptic number.

It is an amenable number.

61245313316 is a deficient number, since it is larger than the sum of its proper divisors (58495107484).

61245313316 is a wasteful number, since it uses less digits than its factorization.

61245313316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26684 (or 26682 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The spelling of 61245313316 in words is "sixty-one billion, two hundred forty-five million, three hundred thirteen thousand, three hundred sixteen".

Divisors: 1 2 4 11 22 43 44 86 172 473 946 1277 1892 2554 5108 14047 25349 28094 50698 54911 56188 101396 109822 219644 278839 557678 604021 1090007 1115356 1208042 2180014 2416084 4360028 11990077 23980154 32370673 47960308 64741346 129482692 356077403 712154806 1391938939 1424309612 2783877878 5567755756 15311328329 30622656658 61245313316