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105400254100 = 225243227107981
BaseRepresentation
bin110001000101001011…
…0000011111010010100
3101002001112011200012211
41202022112003322110
53211324431112400
6120230433123204
710420626243361
oct1421226037224
9332045150184
10105400254100
1140777771a19
12185163b9504
139c2956b47b
14515c351468
152b1d3a4dba
hex188a583e94

105400254100 has 72 divisors (see below), whose sum is σ = 235070767008. Its totient is φ = 40997846400.

The previous prime is 105400254083. The next prime is 105400254103. The reversal of 105400254100 is 1452004501.

It is a super-2 number, since 2×1054002541002 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105400254103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 922110 + ... + 1030090.

It is an arithmetic number, because the mean of its divisors is an integer number (3264871764).

Almost surely, 2105400254100 is an apocalyptic number.

105400254100 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 105400254100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117535383504).

105400254100 is an abundant number, since it is smaller than the sum of its proper divisors (129670512908).

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

105400254100 is a wasteful number, since it uses less digits than its factorization.

105400254100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108265 (or 108258 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 105400254100 its reverse (1452004501), we get a palindrome (106852258601).

The spelling of 105400254100 in words is "one hundred five billion, four hundred million, two hundred fifty-four thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 43 50 86 100 172 215 227 430 454 860 908 1075 1135 2150 2270 4300 4540 5675 9761 11350 19522 22700 39044 48805 97610 107981 195220 215962 244025 431924 488050 539905 976100 1079810 2159620 2699525 4643183 5399050 9286366 10798100 18572732 23215915 24511687 46431830 49023374 92863660 98046748 116079575 122558435 232159150 245116870 464318300 490233740 612792175 1054002541 1225584350 2108005082 2451168700 4216010164 5270012705 10540025410 21080050820 26350063525 52700127050 105400254100