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80100012 = 22327124631
BaseRepresentation
bin1001100011000…
…11101010101100
312120201111120010
410301203222230
5131001200022
611540453220
71661560506
oct461435254
9176644503
1080100012
114123a363
12229aa210
1313796a75
14a8d0d76
15707350c
hex4c63aac

80100012 has 24 divisors (see below), whose sum is σ = 187597312. Its totient is φ = 26600400.

The previous prime is 80100011. The next prime is 80100023. The reversal of 80100012 is 21000108.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (80100011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9064 + ... + 15567.

Almost surely, 280100012 is an apocalyptic number.

It is an amenable number.

80100012 is an abundant number, since it is smaller than the sum of its proper divisors (107497300).

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

80100012 is a wasteful number, since it uses less digits than its factorization.

80100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24909 (or 24907 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 80100012 is about 8949.8610045073. The cubic root of 80100012 is about 431.0664210021.

It can be divided in two parts, 8010001 and 2, that added together give a triangular number (8010003 = T4002).

The spelling of 80100012 in words is "eighty million, one hundred thousand, twelve".

Divisors: 1 2 3 4 6 12 271 542 813 1084 1626 3252 24631 49262 73893 98524 147786 295572 6675001 13350002 20025003 26700004 40050006 80100012