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105472140 = 22351757869
BaseRepresentation
bin1100100100101…
…10000010001100
321100110112120120
412102112002030
5204000102030
614244344540
72420332644
oct622260214
9240415516
10105472140
1154599864
122b3a5150
1318b0b467
1410017524
1593d6010
hex649608c

105472140 has 24 divisors (see below), whose sum is σ = 295322160. Its totient is φ = 28125888.

The previous prime is 105472127. The next prime is 105472151. The reversal of 105472140 is 41274501.

It is a super-2 number, since 2×1054721402 = 22248744632359200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105472140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878875 + ... + 878994.

It is an arithmetic number, because the mean of its divisors is an integer number (12305090).

Almost surely, 2105472140 is an apocalyptic number.

105472140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105472140 is an abundant number, since it is smaller than the sum of its proper divisors (189850020).

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

105472140 is a wasteful number, since it uses less digits than its factorization.

105472140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757881 (or 1757879 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 105472140 is about 10269.9629989596. The cubic root of 105472140 is about 472.4754557391.

The spelling of 105472140 in words is "one hundred five million, four hundred seventy-two thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1757869 3515738 5273607 7031476 8789345 10547214 17578690 21094428 26368035 35157380 52736070 105472140