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105240236 = 22139191991
BaseRepresentation
bin1100100010111…
…01011010101100
321100000202110112
412101131122230
5203420141421
614235355152
72415345563
oct621353254
9240022415
10105240236
1154450602
122b2b2ab8
1318a59a3a
14dd96bda
15938c45b
hex645d6ac

105240236 has 24 divisors (see below), whose sum is σ = 186654720. Its totient is φ = 51915600.

The previous prime is 105240211. The next prime is 105240253. The reversal of 105240236 is 632042501.

It is a super-2 number, since 2×1052402362 = 22151014546671392, which contains 22 as substring.

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, 105701 + ... + 106691.

It is an arithmetic number, because the mean of its divisors is an integer number (7777280).

Almost surely, 2105240236 is an apocalyptic number.

It is an amenable number.

105240236 is a deficient number, since it is larger than the sum of its proper divisors (81414484).

105240236 is a wasteful number, since it uses less digits than its factorization.

105240236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 105240236 is about 10258.6663850619. Note that the first 3 decimals coincide. The cubic root of 105240236 is about 472.1289207830.

Adding to 105240236 its reverse (632042501), we get a palindrome (737282737).

The spelling of 105240236 in words is "one hundred five million, two hundred forty thousand, two hundred thirty-six".

Divisors: 1 2 4 139 191 278 382 556 764 991 1982 3964 26549 53098 106196 137749 189281 275498 378562 550996 757124 26310059 52620118 105240236