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105112145530 = 25711059135781
BaseRepresentation
bin110000111100100101…
…1000000111001111010
3101001022110001020120001
41201321023000321322
53210232202124110
6120142102023214
710410530331610
oct1417113007172
9331273036501
10105112145530
114063a07a767
1218455a17b0a
139bb1975122
145131d956b0
152b02e4463a
hex18792c0e7a

105112145530 has 32 divisors (see below), whose sum is σ = 216251844480. Its totient is φ = 36034925760.

The previous prime is 105112145513. The next prime is 105112145539. The reversal of 105112145530 is 35541211501.

It is a super-2 number, since 2×1051121455302 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105112145539) 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, 706240 + ... + 842020.

It is an arithmetic number, because the mean of its divisors is an integer number (6757870140).

Almost surely, 2105112145530 is an apocalyptic number.

105112145530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105112145530 is an abundant number, since it is smaller than the sum of its proper divisors (111139698950).

105112145530 is a wasteful number, since it uses less digits than its factorization.

105112145530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146854.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 105112145530 in words is "one hundred five billion, one hundred twelve million, one hundred forty-five thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 11059 22118 55295 77413 110590 135781 154826 271562 387065 678905 774130 950467 1357810 1900934 4752335 9504670 1501602079 3003204158 7508010395 10511214553 15016020790 21022429106 52556072765 105112145530