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105167998 = 21325715739
BaseRepresentation
bin1100100010010…
…11110001111110
321022220002101001
412101023301332
5203410333443
614234040514
72414625145
oct621136176
9238802331
10105167998
1154401301
122b27913a
1318a32bb0
14dd7875c
159375d4d
hex644bc7e

105167998 has 16 divisors (see below), whose sum is σ = 170558640. Its totient is φ = 48347136.

The previous prime is 105167989. The next prime is 105168013. The reversal of 105167998 is 899761501.

It is a happy number.

It is a super-2 number, since 2×1051679982 = 22120615606656008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188 + ... + 14551.

It is an arithmetic number, because the mean of its divisors is an integer number (10659915).

Almost surely, 2105167998 is an apocalyptic number.

105167998 is a deficient number, since it is larger than the sum of its proper divisors (65390642).

105167998 is a wasteful number, since it uses less digits than its factorization.

105167998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16011.

The product of its (nonzero) digits is 136080, while the sum is 46.

The square root of 105167998 is about 10255.1449526567. The cubic root of 105167998 is about 472.0208713121.

The spelling of 105167998 in words is "one hundred five million, one hundred sixty-seven thousand, nine hundred ninety-eight".

Divisors: 1 2 13 26 257 514 3341 6682 15739 31478 204607 409214 4044923 8089846 52583999 105167998