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126447970 = 25111149527
BaseRepresentation
bin1111000100101…
…11000101100010
322210221020000011
413202113011202
5224332313340
620314115134
73063534655
oct742270542
9283836004
10126447970
1165416260
123641baaa
1320273aac
1412b1789c
15b17b0ea
hex7897162

126447970 has 16 divisors (see below), whose sum is σ = 248298048. Its totient is φ = 45981040.

The previous prime is 126447941. The next prime is 126447973. The reversal of 126447970 is 79744621.

It is not an unprimeable number, because it can be changed into a prime (126447973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574654 + ... + 574873.

It is an arithmetic number, because the mean of its divisors is an integer number (15518628).

Almost surely, 2126447970 is an apocalyptic number.

126447970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126447970 is a deficient number, since it is larger than the sum of its proper divisors (121850078).

126447970 is a wasteful number, since it uses less digits than its factorization.

126447970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149545.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 126447970 is about 11244.9086256848. The cubic root of 126447970 is about 501.9232196344.

The spelling of 126447970 in words is "one hundred twenty-six million, four hundred forty-seven thousand, nine hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 1149527 2299054 5747635 11495270 12644797 25289594 63223985 126447970