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80401011 = 3315914653
BaseRepresentation
bin1001100101011…
…01001001110011
312121021210110020
410302231021303
5131040313021
611551134523
71664253165
oct462551163
9177253406
1080401011
1141425519
1222b14443
1313870a82
14a96c935
1570d27c6
hex4cad273

80401011 has 16 divisors (see below), whose sum is σ = 112542720. Its totient is φ = 50988960.

The previous prime is 80401003. The next prime is 80401043. The reversal of 80401011 is 11010408.

It is not a de Polignac number, because 80401011 - 23 = 80401003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80401001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1840 + ... + 12813.

It is an arithmetic number, because the mean of its divisors is an integer number (7033920).

Almost surely, 280401011 is an apocalyptic number.

80401011 is a deficient number, since it is larger than the sum of its proper divisors (32141709).

80401011 is a wasteful number, since it uses less digits than its factorization.

80401011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14746.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 80401011 is about 8966.6610842610. The cubic root of 80401011 is about 431.6056983870.

Adding to 80401011 its reverse (11010408), we get a palindrome (91411419).

The spelling of 80401011 in words is "eighty million, four hundred one thousand, eleven".

Divisors: 1 3 31 59 93 177 1829 5487 14653 43959 454243 864527 1362729 2593581 26800337 80401011