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18408755014 = 2131741648767
BaseRepresentation
bin10001001001001111…
…110100111101000110
31202111221022122111021
4101021033310331012
5300200120130024
612242403301354
71221120556456
oct211117647506
952457278437
1018408755014
117897298121
12369907a85a
131974b18b60
14c68c2dd66
1572b1eade4
hex4493f4f46

18408755014 has 16 divisors (see below), whose sum is σ = 31486468608. Its totient is φ = 7996563072.

The previous prime is 18408755011. The next prime is 18408755021. The reversal of 18408755014 is 41055780481.

It is a super-2 number, since 2×184087550142 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18408755011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20823942 + ... + 20824825.

It is an arithmetic number, because the mean of its divisors is an integer number (1967904288).

Almost surely, 218408755014 is an apocalyptic number.

18408755014 is a deficient number, since it is larger than the sum of its proper divisors (13077713594).

18408755014 is a wasteful number, since it uses less digits than its factorization.

18408755014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41648799.

The product of its (nonzero) digits is 179200, while the sum is 43.

The spelling of 18408755014 in words is "eighteen billion, four hundred eight million, seven hundred fifty-five thousand, fourteen".

Divisors: 1 2 13 17 26 34 221 442 41648767 83297534 541433971 708029039 1082867942 1416058078 9204377507 18408755014