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13642850 = 25213139151
BaseRepresentation
bin110100000010…
…110001100010
3221200010110202
4310002301202
511443032400
61204225202
7223651034
oct64026142
927603422
1013642850
117779091
12469b202
132a989c0
141b51c54
1512e74d5
hexd02c62

13642850 has 48 divisors (see below), whose sum is σ = 27706560. Its totient is φ = 4968000.

The previous prime is 13642807. The next prime is 13642859. The reversal of 13642850 is 5824631.

It is a super-2 number, since 2×136428502 = 372254712245000, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13642859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90275 + ... + 90425.

It is an arithmetic number, because the mean of its divisors is an integer number (577220).

Almost surely, 213642850 is an apocalyptic number.

13642850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13642850 is an abundant number, since it is smaller than the sum of its proper divisors (14063710).

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

13642850 is a wasteful number, since it uses less digits than its factorization.

13642850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 13642850 is about 3693.6228827535. The cubic root of 13642850 is about 238.9470655338.

The spelling of 13642850 in words is "thirteen million, six hundred forty-two thousand, eight hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 139 151 278 302 325 650 695 755 1390 1510 1807 1963 3475 3614 3775 3926 6950 7550 9035 9815 18070 19630 20989 41978 45175 49075 90350 98150 104945 209890 272857 524725 545714 1049450 1364285 2728570 6821425 13642850