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80081532 = 22326136467
BaseRepresentation
bin1001100010111…
…11001001111100
312120200120012200
410301133021330
5131000102112
611540231500
71661452566
oct461371174
9176616180
1080081532
1141227493
122299b590
131378b52b
14a8c8336
15706ccdc
hex4c5f27c

80081532 has 36 divisors (see below), whose sum is σ = 205752456. Its totient is φ = 26255520.

The previous prime is 80081513. The next prime is 80081581. The reversal of 80081532 is 23518008.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 80081496 and 80081505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16038 + ... + 20429.

It is an arithmetic number, because the mean of its divisors is an integer number (5715346).

Almost surely, 280081532 is an apocalyptic number.

It is an amenable number.

80081532 is an abundant number, since it is smaller than the sum of its proper divisors (125670924).

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

80081532 is a wasteful number, since it uses less digits than its factorization.

80081532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36538 (or 36533 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 80081532 is about 8948.8285266844. The cubic root of 80081532 is about 431.0332677813.

The spelling of 80081532 in words is "eighty million, eighty-one thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 61 122 183 244 366 549 732 1098 2196 36467 72934 109401 145868 218802 328203 437604 656406 1312812 2224487 4448974 6673461 8897948 13346922 20020383 26693844 40040766 80081532