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80730402 = 2313455067
BaseRepresentation
bin1001100111111…
…01100100100010
312121220112021220
410303331210202
5131131333102
612002155510
72000124414
oct463754442
9177815256
1080730402
114162aa45
1223052b96
131395798c
14aa169b4
15714a1bc
hex4cfd922

80730402 has 8 divisors (see below), whose sum is σ = 161460816. Its totient is φ = 26910132.

The previous prime is 80730383. The next prime is 80730407. The reversal of 80730402 is 20403708.

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

80730402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (80730407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6727528 + ... + 6727539.

It is an arithmetic number, because the mean of its divisors is an integer number (20182602).

Almost surely, 280730402 is an apocalyptic number.

80730402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

80730402 is a wasteful number, since it uses less digits than its factorization.

80730402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13455072.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 80730402 is about 8985.0098497442. The cubic root of 80730402 is about 432.1943034545.

The spelling of 80730402 in words is "eighty million, seven hundred thirty thousand, four hundred two".

Divisors: 1 2 3 6 13455067 26910134 40365201 80730402