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105255402 = 23719131899
BaseRepresentation
bin1100100011000…
…01000111101010
321100001112021020
412101201013222
5203421133102
614235553310
72415441030
oct621410752
9240045236
10105255402
1154460a3a
122b2bb836
1318a63905
14dd9c550
159391bbc
hex64611ea

105255402 has 32 divisors (see below), whose sum is σ = 253248000. Its totient is φ = 28489968.

The previous prime is 105255389. The next prime is 105255407. The reversal of 105255402 is 204552501.

It is a happy number.

It is a super-2 number, since 2×1052554022 = 22157399300363208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105255407) 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, 65152 + ... + 66747.

It is an arithmetic number, because the mean of its divisors is an integer number (7914000).

Almost surely, 2105255402 is an apocalyptic number.

105255402 is an abundant number, since it is smaller than the sum of its proper divisors (147992598).

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

105255402 is a wasteful number, since it uses less digits than its factorization.

105255402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131930.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 105255402 is about 10259.4055383341. The cubic root of 105255402 is about 472.1515989384.

The spelling of 105255402 in words is "one hundred five million, two hundred fifty-five thousand, four hundred two".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 131899 263798 395697 791394 923293 1846586 2506081 2769879 5012162 5539758 7518243 15036486 17542567 35085134 52627701 105255402