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76885020 = 223251922481
BaseRepresentation
bin1001001010100…
…10110000011100
312100200011102100
410211102300130
5124140310040
611343525100
71622340402
oct445226034
9170604370
1076885020
113a443943
12218b9790
1312c0c5c4
14a2d5472
156b3ab30
hex4952c1c

76885020 has 72 divisors (see below), whose sum is σ = 245503440. Its totient is φ = 19422720.

The previous prime is 76884971. The next prime is 76885027. The reversal of 76885020 is 2058867.

76885020 is a `hidden beast` number, since 76 + 88 + 502 + 0 = 666.

It is a super-2 number, since 2×768850202 = 11822612600800800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76885027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7821 + ... + 14660.

It is an arithmetic number, because the mean of its divisors is an integer number (3409770).

Almost surely, 276885020 is an apocalyptic number.

It is an amenable number.

76885020 is an abundant number, since it is smaller than the sum of its proper divisors (168618420).

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

76885020 is a wasteful number, since it uses less digits than its factorization.

76885020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22515 (or 22510 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 76885020 is about 8768.4103462372. The cubic root of 76885020 is about 425.2202226608.

The spelling of 76885020 in words is "seventy-six million, eight hundred eighty-five thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 45 57 60 76 90 95 114 171 180 190 228 285 342 380 570 684 855 1140 1710 3420 22481 44962 67443 89924 112405 134886 202329 224810 269772 337215 404658 427139 449620 674430 809316 854278 1011645 1281417 1348860 1708556 2023290 2135695 2562834 3844251 4046580 4271390 5125668 6407085 7688502 8542780 12814170 15377004 19221255 25628340 38442510 76885020