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1220752014 = 231719629903
BaseRepresentation
bin100100011000011…
…0011001010001110
310011002001121221120
41020300303022032
510000003031024
6321044541410
742152135526
oct11060631216
93132047846
101220752014
115770a0069
122a09b1866
13165babc91
14b81b2686
1572289479
hex48c3328e

1220752014 has 32 divisors (see below), whose sum is σ = 2721185280. Its totient is φ = 362823552.

The previous prime is 1220751991. The next prime is 1220752079. The reversal of 1220752014 is 4102570221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313014 + ... + 316889.

It is an arithmetic number, because the mean of its divisors is an integer number (85037040).

Almost surely, 21220752014 is an apocalyptic number.

1220752014 is an abundant number, since it is smaller than the sum of its proper divisors (1500433266).

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

1220752014 is a wasteful number, since it uses less digits than its factorization.

1220752014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629944.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 1220752014 is about 34939.2617838443. The cubic root of 1220752014 is about 1068.7492340475.

The spelling of 1220752014 in words is "one billion, two hundred twenty million, seven hundred fifty-two thousand, fourteen".

Divisors: 1 2 3 6 17 19 34 38 51 57 102 114 323 646 969 1938 629903 1259806 1889709 3779418 10708351 11968157 21416702 23936314 32125053 35904471 64250106 71808942 203458669 406917338 610376007 1220752014