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8013018 = 2313176043
BaseRepresentation
bin11110100100010011011010
3120002002210110
4132210103122
54022404033
6443425150
7125052366
oct36442332
916062713
108013018
114583332
1228251b6
131877340
1410c82a6
15a84363
hex7a44da

8013018 has 32 divisors (see below), whose sum is σ = 18277056. Its totient is φ = 2320128.

The previous prime is 8013013. The next prime is 8013029. The reversal of 8013018 is 8103108.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8012985 and 8013003.

It is not an unprimeable number, because it can be changed into a prime (8013013) 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, 1696 + ... + 4347.

It is an arithmetic number, because the mean of its divisors is an integer number (571158).

Almost surely, 28013018 is an apocalyptic number.

8013018 is an abundant number, since it is smaller than the sum of its proper divisors (10264038).

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

8013018 is a wasteful number, since it uses less digits than its factorization.

8013018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6078.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 8013018 is about 2830.7274683374. The cubic root of 8013018 is about 200.1084245433.

The spelling of 8013018 in words is "eight million, thirteen thousand, eighteen".

Divisors: 1 2 3 6 13 17 26 34 39 51 78 102 221 442 663 1326 6043 12086 18129 36258 78559 102731 157118 205462 235677 308193 471354 616386 1335503 2671006 4006509 8013018