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105452144 = 247941537
BaseRepresentation
bin1100100100100…
…01001001110000
321100102112010222
412102101021300
5203443432034
614244112212
72420220440
oct622211160
9240375128
10105452144
1154585836
122b395668
1318b02325
1410010120
1593d012e
hex6491270

105452144 has 20 divisors (see below), whose sum is σ = 233501424. Its totient is φ = 45193728.

The previous prime is 105452141. The next prime is 105452167. The reversal of 105452144 is 441254501.

It is a super-2 number, since 2×1054521442 = 22240309348393472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105452141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470657 + ... + 470880.

Almost surely, 2105452144 is an apocalyptic number.

105452144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

105452144 is an abundant number, since it is smaller than the sum of its proper divisors (128049280).

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

105452144 is an equidigital number, since it uses as much as digits as its factorization.

105452144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941552 (or 941546 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 105452144 is about 10268.9894342141. The cubic root of 105452144 is about 472.4455956696.

The spelling of 105452144 in words is "one hundred five million, four hundred fifty-two thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 941537 1883074 3766148 6590759 7532296 13181518 15064592 26363036 52726072 105452144