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61231143364 = 2219805672939
BaseRepresentation
bin111001000001101010…
…010001100111000100
312212001022012100221121
4321001222101213010
52000400133041424
644043523523324
74265236062646
oct710152214704
9185038170847
1061231143364
1123a71425316
12ba4a229544
135a0a836ba1
142d6c1ac896
1518d5890ee4
hexe41a919c4

61231143364 has 12 divisors (see below), whose sum is σ = 112794211600. Its totient is φ = 29004225768.

The previous prime is 61231143359. The next prime is 61231143401. The reversal of 61231143364 is 46334113216.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402836394 + ... + 402836545.

Almost surely, 261231143364 is an apocalyptic number.

It is an amenable number.

61231143364 is a deficient number, since it is larger than the sum of its proper divisors (51563068236).

61231143364 is a wasteful number, since it uses less digits than its factorization.

61231143364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805672962 (or 805672960 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The spelling of 61231143364 in words is "sixty-one billion, two hundred thirty-one million, one hundred forty-three thousand, three hundred sixty-four".

Divisors: 1 2 4 19 38 76 805672939 1611345878 3222691756 15307785841 30615571682 61231143364