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13730570 = 257732687
BaseRepresentation
bin110100011000…
…001100001010
3221211120210122
4310120030022
512003334240
61210143242
7224464550
oct64301412
927746718
1013730570
117828a87
124721b22
132ac98c9
141b75bd0
1513134b5
hexd1830a

13730570 has 32 divisors (see below), whose sum is σ = 28643328. Its totient is φ = 4641408.

The previous prime is 13730569. The next prime is 13730579. The reversal of 13730570 is 7503731.

It is not an unprimeable number, because it can be changed into a prime (13730579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3767 + ... + 6453.

It is an arithmetic number, because the mean of its divisors is an integer number (895104).

Almost surely, 213730570 is an apocalyptic number.

13730570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13730570 is an abundant number, since it is smaller than the sum of its proper divisors (14912758).

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

13730570 is a wasteful number, since it uses less digits than its factorization.

13730570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774.

The product of its (nonzero) digits is 2205, while the sum is 26.

The square root of 13730570 is about 3705.4783766742. The cubic root of 13730570 is about 239.4580944605.

The spelling of 13730570 in words is "thirteen million, seven hundred thirty thousand, five hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 73 146 365 511 730 1022 2555 2687 5110 5374 13435 18809 26870 37618 94045 188090 196151 392302 980755 1373057 1961510 2746114 6865285 13730570