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125605490 = 2531405179
BaseRepresentation
bin1110111110010…
…01011001110010
322202100102100012
413133021121302
5224123333430
620244054522
73053425523
oct737113162
9282312305
10125605490
11649a029a
1236094442
132003a49a
141297884a
15b061695
hex77c9672

125605490 has 16 divisors (see below), whose sum is σ = 233383680. Its totient is φ = 48621360.

The previous prime is 125605483. The next prime is 125605499. The reversal of 125605490 is 94506521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (125605499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202280 + ... + 202899.

It is an arithmetic number, because the mean of its divisors is an integer number (14586480).

Almost surely, 2125605490 is an apocalyptic number.

125605490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125605490 is a deficient number, since it is larger than the sum of its proper divisors (107778190).

125605490 is a wasteful number, since it uses less digits than its factorization.

125605490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405217.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 125605490 is about 11207.3855113492. The cubic root of 125605490 is about 500.8060199654.

The spelling of 125605490 in words is "one hundred twenty-five million, six hundred five thousand, four hundred ninety".

Divisors: 1 2 5 10 31 62 155 310 405179 810358 2025895 4051790 12560549 25121098 62802745 125605490