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20349626 = 2117312671
BaseRepresentation
bin100110110100…
…0001010111010
31102021212102212
41031220022322
520202142001
62004055122
7334653233
oct115501272
942255385
1020349626
1110539a80
1269944a2
1342a65cb
1429ba08a
151bbe7bb
hex13682ba

20349626 has 16 divisors (see below), whose sum is σ = 33758208. Its totient is φ = 9122400.

The previous prime is 20349613. The next prime is 20349643. The reversal of 20349626 is 62694302.

It is a junction number, because it is equal to n+sod(n) for n = 20349592 and 20349601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4730 + ... + 7941.

It is an arithmetic number, because the mean of its divisors is an integer number (2109888).

Almost surely, 220349626 is an apocalyptic number.

20349626 is a deficient number, since it is larger than the sum of its proper divisors (13408582).

20349626 is a wasteful number, since it uses less digits than its factorization.

20349626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12757.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 20349626 is about 4511.0559739378. The cubic root of 20349626 is about 273.0143516005.

The spelling of 20349626 in words is "twenty million, three hundred forty-nine thousand, six hundred twenty-six".

Divisors: 1 2 11 22 73 146 803 1606 12671 25342 139381 278762 924983 1849966 10174813 20349626