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105452016144 = 24371181170953
BaseRepresentation
bin110001000110101101…
…1100001001000010000
3101002012010120110101120
41202031123201020100
53211431204004034
6120235522402240
710422125230206
oct1421533411020
9332163513346
10105452016144
11407a3a06572
121852b800380
139c371c28b7
145165187076
152b22bcbc49
hex188d6e1210

105452016144 has 80 divisors (see below), whose sum is σ = 277782470784. Its totient is φ = 34463923200.

The previous prime is 105452016133. The next prime is 105452016149. The reversal of 105452016144 is 441610254501.

It is a super-2 number, since 2×1054520161442 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105452016149) 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, 531372 + ... + 702324.

Almost surely, 2105452016144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105452016144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138891235392).

105452016144 is an abundant number, since it is smaller than the sum of its proper divisors (172330454640).

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

105452016144 is a wasteful number, since it uses less digits than its factorization.

105452016144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171216 (or 171210 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 105452016144 in words is "one hundred five billion, four hundred fifty-two million, sixteen thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 71 142 181 213 284 362 426 543 568 724 852 1086 1136 1448 1704 2172 2896 3408 4344 8688 12851 25702 38553 51404 77106 102808 154212 170953 205616 308424 341906 512859 616848 683812 1025718 1367624 2051436 2735248 4102872 8205744 12137663 24275326 30942493 36412989 48550652 61884986 72825978 92827479 97101304 123769972 145651956 185654958 194202608 247539944 291303912 371309916 495079888 582607824 742619832 1485239664 2196917003 4393834006 6590751009 8787668012 13181502018 17575336024 26363004036 35150672048 52726008072 105452016144