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80750690 = 259478527
BaseRepresentation
bin1001101000000…
…10100001100010
312121221120010022
410310002201202
5131133010230
612002433442
72000240516
oct464024142
9177846108
1080750690
1141644209
1223062882
1313963c97
14aa20146
1571511e5
hex4d02862

80750690 has 16 divisors (see below), whose sum is σ = 145521792. Its totient is φ = 32262384.

The previous prime is 80750671. The next prime is 80750693. The reversal of 80750690 is 9605708.

It is a super-2 number, since 2×807506902 = 13041347870952200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80750690.

It is not an unprimeable number, because it can be changed into a prime (80750693) 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, 5207 + ... + 13733.

It is an arithmetic number, because the mean of its divisors is an integer number (9095112).

Almost surely, 280750690 is an apocalyptic number.

80750690 is a deficient number, since it is larger than the sum of its proper divisors (64771102).

80750690 is a wasteful number, since it uses less digits than its factorization.

80750690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9481.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 80750690 is about 8986.1387703507. The cubic root of 80750690 is about 432.2305047013.

The spelling of 80750690 in words is "eighty million, seven hundred fifty thousand, six hundred ninety".

Divisors: 1 2 5 10 947 1894 4735 8527 9470 17054 42635 85270 8075069 16150138 40375345 80750690