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80102401 = 123165071
BaseRepresentation
bin1001100011001…
…00010000000001
312120201121211121
410301210100001
5131001234101
611540512241
71661600461
oct461442001
9176647747
1080102401
1141241135
12229ab681
1313797b92
14a8d1ba1
1570740a1
hex4c64401

80102401 has 4 divisors (see below), whose sum is σ = 80168704. Its totient is φ = 80036100.

The previous prime is 80102381. The next prime is 80102431. The reversal of 80102401 is 10420108.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80102401 - 27 = 80102273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80102431) 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, 31305 + ... + 33766.

It is an arithmetic number, because the mean of its divisors is an integer number (20042176).

Almost surely, 280102401 is an apocalyptic number.

It is an amenable number.

80102401 is a deficient number, since it is larger than the sum of its proper divisors (66303).

80102401 is a wasteful number, since it uses less digits than its factorization.

80102401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66302.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 80102401 is about 8949.9944692720. The cubic root of 80102401 is about 431.0707065089.

Adding to 80102401 its reverse (10420108), we get a palindrome (90522509).

The spelling of 80102401 in words is "eighty million, one hundred two thousand, four hundred one".

Divisors: 1 1231 65071 80102401