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105013043478 = 23274722377927
BaseRepresentation
bin110000111001101000…
…0111110000100010110
3101001001112120100002200
41201303100332010112
53210031314342403
6120124201545330
710405215066420
oct1416320760426
9331045510080
10105013043478
1140599141942
12184287a5246
139b97287265
145122b59810
152ae93baca3
hex187343e116

105013043478 has 96 divisors (see below), whose sum is σ = 265717131264. Its totient is φ = 29348519616.

The previous prime is 105013043363. The next prime is 105013043479. The reversal of 105013043478 is 874340310501.

It is a happy number.

105013043478 is a `hidden beast` number, since 1 + 0 + 5 + 0 + 1 + 304 + 347 + 8 = 666.

It is a super-2 number, since 2×1050130434782 (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 (105013043479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13243551 + ... + 13251477.

It is an arithmetic number, because the mean of its divisors is an integer number (2767886784).

Almost surely, 2105013043478 is an apocalyptic number.

105013043478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 105013043478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132858565632).

105013043478 is an abundant number, since it is smaller than the sum of its proper divisors (160704087786).

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

105013043478 is a wasteful number, since it uses less digits than its factorization.

105013043478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10226 (or 10223 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

Adding to 105013043478 its reverse (874340310501), we get a palindrome (979353353979).

The spelling of 105013043478 in words is "one hundred five billion, thirteen million, forty-three thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 7 9 14 18 21 42 47 63 94 126 141 282 329 423 658 846 987 1974 2237 2961 4474 5922 6711 7927 13422 15659 15854 20133 23781 31318 40266 46977 47562 55489 71343 93954 105139 110978 140931 142686 166467 210278 281862 315417 332934 372569 499401 630834 735973 745138 946251 998802 1117707 1471946 1892502 2207919 2235414 2607983 3353121 4415838 5215966 6623757 6706242 7823949 13247514 15647898 17732699 23471847 35465398 46943694 53198097 106396194 124128893 159594291 248257786 319188582 372386679 744773358 833436853 1117160037 1666873706 2234320074 2500310559 5000621118 5834057971 7500931677 11668115942 15001863354 17502173913 35004347826 52506521739 105013043478