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121570130 = 251110131091
BaseRepresentation
bin1110011111100…
…00001101010010
322110202101212102
413033300031102
5222110221010
620021400402
73004220603
oct717601522
9273671772
10121570130
1162694490
1234869102
131c2567b6
1412207daa
15aa15ba5
hex73f0352

121570130 has 32 divisors (see below), whose sum is σ = 239174208. Its totient is φ = 44123200.

The previous prime is 121570109. The next prime is 121570187. The reversal of 121570130 is 31075121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110885 + ... + 111975.

It is an arithmetic number, because the mean of its divisors is an integer number (7474194).

Almost surely, 2121570130 is an apocalyptic number.

121570130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121570130 is a deficient number, since it is larger than the sum of its proper divisors (117604078).

121570130 is a wasteful number, since it uses less digits than its factorization.

121570130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 121570130 is about 11025.8845450150. The cubic root of 121570130 is about 495.3843628976.

The spelling of 121570130 in words is "one hundred twenty-one million, five hundred seventy thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 1013 1091 2026 2182 5065 5455 10130 10910 11143 12001 22286 24002 55715 60005 111430 120010 1105183 2210366 5525915 11051830 12157013 24314026 60785065 121570130