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13370020 = 2251674003
BaseRepresentation
bin110011000000…
…001010100100
3221011021012221
4303000022210
511410320040
61154322124
7221433436
oct63001244
927137187
1013370020
117602104
124589344
132a01771
141ac0656
15129174a
hexcc02a4

13370020 has 24 divisors (see below), whose sum is σ = 28252224. Its totient is φ = 5314656.

The previous prime is 13370003. The next prime is 13370029. The reversal of 13370020 is 2007331.

It is a junction number, because it is equal to n+sod(n) for n = 13369976 and 13370003.

It is not an unprimeable number, because it can be changed into a prime (13370029) 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, 1339 + ... + 5341.

It is an arithmetic number, because the mean of its divisors is an integer number (1177176).

Almost surely, 213370020 is an apocalyptic number.

13370020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13370020 is an abundant number, since it is smaller than the sum of its proper divisors (14882204).

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

13370020 is a wasteful number, since it uses less digits than its factorization.

13370020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179 (or 4177 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 13370020 is about 3656.5037946104. The cubic root of 13370020 is about 237.3435053994.

Adding to 13370020 its reverse (2007331), we get a palindrome (15377351).

The spelling of 13370020 in words is "thirteen million, three hundred seventy thousand, twenty".

Divisors: 1 2 4 5 10 20 167 334 668 835 1670 3340 4003 8006 16012 20015 40030 80060 668501 1337002 2674004 3342505 6685010 13370020