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1985072232053 = 19993710645931
BaseRepresentation
bin11100111000101111100…
…001100111011001110101
321000202211002121200000202
4130320233201213121311
5230010411442411203
64115532443050245
7263262640366511
oct34705741473165
97022732550022
101985072232053
116a5956584889
12280878810985
13115264988aa1
146c1140ad141
15369826d5388
hex1ce2f867675

1985072232053 has 8 divisors (see below), whose sum is σ = 1997176843200. Its totient is φ = 1972988915040.

The previous prime is 1985072232049. The next prime is 1985072232089. The reversal of 1985072232053 is 3502322705891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1985072232053 - 22 = 1985072232049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1985072231989 and 1985072232007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1985072232553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5136503 + ... + 5509428.

It is an arithmetic number, because the mean of its divisors is an integer number (249647105400).

Almost surely, 21985072232053 is an apocalyptic number.

It is an amenable number.

1985072232053 is a deficient number, since it is larger than the sum of its proper divisors (12104611147).

1985072232053 is a wasteful number, since it uses less digits than its factorization.

1985072232053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10647067.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 1985072232053 in words is "one trillion, nine hundred eighty-five billion, seventy-two million, two hundred thirty-two thousand, fifty-three".

Divisors: 1 199 937 186463 10645931 2118540269 9975237347 1985072232053