Search a number
-
+
105457120 = 25517137283
BaseRepresentation
bin1100100100100…
…10010111100000
321100102202222021
412102102113200
5203444111440
614244151224
72420241106
oct622222740
9240382867
10105457120
115458954a
122b398514
1318b04682
1410011c76
1593d184a
hex64925e0

105457120 has 96 divisors (see below), whose sum is σ = 266662368. Its totient is φ = 39272448.

The previous prime is 105457111. The next prime is 105457127. The reversal of 105457120 is 21754501.

It is a super-2 number, since 2×1054571202 = 22242408317388800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105457127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372499 + ... + 372781.

It is an arithmetic number, because the mean of its divisors is an integer number (2777733).

Almost surely, 2105457120 is an apocalyptic number.

105457120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105457120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133331184).

105457120 is an abundant number, since it is smaller than the sum of its proper divisors (161205248).

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

105457120 is a wasteful number, since it uses less digits than its factorization.

105457120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 105457120 is about 10269.2317142034. The cubic root of 105457120 is about 472.4530266938.

The spelling of 105457120 in words is "one hundred five million, four hundred fifty-seven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 136 137 160 170 272 274 283 340 544 548 566 680 685 1096 1132 1360 1370 1415 2192 2264 2329 2720 2740 2830 4384 4528 4658 4811 5480 5660 9056 9316 9622 10960 11320 11645 18632 19244 21920 22640 23290 24055 37264 38488 38771 45280 46580 48110 74528 76976 77542 93160 96220 153952 155084 186320 192440 193855 310168 372640 384880 387710 620336 659107 769760 775420 1240672 1318214 1550840 2636428 3101680 3295535 5272856 6203360 6591070 10545712 13182140 21091424 26364280 52728560 105457120