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80550407 = 753217117
BaseRepresentation
bin1001100110100…
…01101000000111
312121120101101102
410303101220013
5131110103112
611554250315
71665444560
oct463215007
9177511342
1080550407
1141517793
1222b8699b
13138c3a82
14a9ab167
157111bc2
hex4cd1a07

80550407 has 8 divisors (see below), whose sum is σ = 93794976. Its totient is φ = 67740192.

The previous prime is 80550401. The next prime is 80550451. The reversal of 80550407 is 70405508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80550407 - 24 = 80550391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80550407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80550401) 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, 108188 + ... + 108929.

It is an arithmetic number, because the mean of its divisors is an integer number (11724372).

Almost surely, 280550407 is an apocalyptic number.

80550407 is a deficient number, since it is larger than the sum of its proper divisors (13244569).

80550407 is a wasteful number, since it uses less digits than its factorization.

80550407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217177.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 80550407 is about 8974.9878551450. The cubic root of 80550407 is about 431.8728603196.

The spelling of 80550407 in words is "eighty million, five hundred fifty thousand, four hundred seven".

Divisors: 1 7 53 371 217117 1519819 11507201 80550407