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105120070 = 251129311063
BaseRepresentation
bin1100100010000…
…00000101000110
321022210122121221
412101000011012
5203402320240
614233030554
72414335336
oct621000506
9238718557
10105120070
11543792a0
122b25545a
1318a17133
14dd650c6
159366a4a
hex6440146

105120070 has 64 divisors (see below), whose sum is σ = 220631040. Its totient is φ = 35683200.

The previous prime is 105120013. The next prime is 105120107. The reversal of 105120070 is 70021501.

It is a super-2 number, since 2×1051200702 = 22100458233609800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98359 + ... + 99421.

It is an arithmetic number, because the mean of its divisors is an integer number (3447360).

Almost surely, 2105120070 is an apocalyptic number.

105120070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105120070 is an abundant number, since it is smaller than the sum of its proper divisors (115510970).

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

105120070 is a wasteful number, since it uses less digits than its factorization.

105120070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 105120070 is about 10252.8079080806. The cubic root of 105120070 is about 471.9491560430.

Adding to 105120070 its reverse (70021501), we get a palindrome (175141571).

The spelling of 105120070 in words is "one hundred five million, one hundred twenty thousand, seventy".

Divisors: 1 2 5 10 11 22 29 31 55 58 62 110 145 155 290 310 319 341 638 682 899 1063 1595 1705 1798 2126 3190 3410 4495 5315 8990 9889 10630 11693 19778 23386 30827 32953 49445 58465 61654 65906 98890 116930 154135 164765 308270 329530 339097 362483 678194 724966 955637 1695485 1812415 1911274 3390970 3624830 4778185 9556370 10512007 21024014 52560035 105120070