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105040254 = 231113112149
BaseRepresentation
bin1100100001011…
…00100101111110
321022122121010210
412100230211332
5203342242004
614231213250
72413553544
oct620544576
9238577123
10105040254
1154324330
122b217226
13189b99c7
14dd43d94
15934d089
hex642c97e

105040254 has 32 divisors (see below), whose sum is σ = 230947200. Its totient is φ = 31584800.

The previous prime is 105040249. The next prime is 105040277. The reversal of 105040254 is 452040501.

It is a super-2 number, since 2×1050402542 = 22066909920769032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105040254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2572 + ... + 14720.

It is an arithmetic number, because the mean of its divisors is an integer number (7217100).

Almost surely, 2105040254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105040254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115473600).

105040254 is an abundant number, since it is smaller than the sum of its proper divisors (125906946).

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

105040254 is a wasteful number, since it uses less digits than its factorization.

105040254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12296.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 105040254 is about 10248.9147718185. The cubic root of 105040254 is about 471.8296779651.

Adding to 105040254 its reverse (452040501), we get a palindrome (557080755).

The spelling of 105040254 in words is "one hundred five million, forty thousand, two hundred fifty-four".

Divisors: 1 2 3 6 11 22 33 66 131 262 393 786 1441 2882 4323 8646 12149 24298 36447 72894 133639 267278 400917 801834 1591519 3183038 4774557 9549114 17506709 35013418 52520127 105040254