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87006480 = 24351132957
BaseRepresentation
bin1010010111110…
…01110100010000
320001201101110020
411023321310100
5134233201410
612344503440
72104354131
oct513716420
9201641406
1087006480
1145127290
122517ab80
1315044532
14b7abc88
157989a70
hex52f9d10

87006480 has 80 divisors (see below), whose sum is σ = 294249024. Its totient is φ = 21091840.

The previous prime is 87006473. The next prime is 87006503. The reversal of 87006480 is 8460078.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 13839 + ... + 19118.

Almost surely, 287006480 is an apocalyptic number.

87006480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87006480 is an abundant number, since it is smaller than the sum of its proper divisors (207242544).

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

87006480 is a wasteful number, since it uses less digits than its factorization.

87006480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32984 (or 32978 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 87006480 is about 9327.7264110822. The cubic root of 87006480 is about 443.1157631179.

The spelling of 87006480 in words is "eighty-seven million, six thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 132 165 176 220 240 264 330 440 528 660 880 1320 2640 32957 65914 98871 131828 164785 197742 263656 329570 362527 395484 494355 527312 659140 725054 790968 988710 1087581 1318280 1450108 1581936 1812635 1977420 2175162 2636560 2900216 3625270 3954840 4350324 5437905 5800432 7250540 7909680 8700648 10875810 14501080 17401296 21751620 29002160 43503240 87006480