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18210023414 = 2116113569317
BaseRepresentation
bin10000111101011001…
…101110011111110110
31202000002101000222122
4100331121232133312
5244243231222124
612210543555542
71213155434162
oct207531563766
952002330878
1018210023414
1177a50a1130
1236425bbbb2
1319428b6cab
14c4a69bca2
15718a4275e
hex43d66e7f6

18210023414 has 16 divisors (see below), whose sum is σ = 30286717776. Its totient is φ = 8141589600.

The previous prime is 18210023407. The next prime is 18210023417. The reversal of 18210023414 is 41432001281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18210023417) 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, 6783317 + ... + 6786000.

It is an arithmetic number, because the mean of its divisors is an integer number (1892919861).

Almost surely, 218210023414 is an apocalyptic number.

18210023414 is a deficient number, since it is larger than the sum of its proper divisors (12076694362).

18210023414 is a wasteful number, since it uses less digits than its factorization.

18210023414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13569391.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 18210023414 its reverse (41432001281), we get a palindrome (59642024695).

The spelling of 18210023414 in words is "eighteen billion, two hundred ten million, twenty-three thousand, four hundred fourteen".

Divisors: 1 2 11 22 61 122 671 1342 13569317 27138634 149262487 298524974 827728337 1655456674 9105011707 18210023414