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20696370 = 235689879
BaseRepresentation
bin100111011110…
…0110100110010
31102221111002020
41032330310302
520244240440
62015332310
7340626162
oct116746462
942844066
1020696370
1110756542
126b21096
134398396
142a6a5a2
151c3c3d0
hex13bcd32

20696370 has 16 divisors (see below), whose sum is σ = 49671360. Its totient is φ = 5519024.

The previous prime is 20696363. The next prime is 20696381. The reversal of 20696370 is 7369602.

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, 344910 + ... + 344969.

It is an arithmetic number, because the mean of its divisors is an integer number (3104460).

Almost surely, 220696370 is an apocalyptic number.

20696370 is an abundant number, since it is smaller than the sum of its proper divisors (28974990).

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

20696370 is a wasteful number, since it uses less digits than its factorization.

20696370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689889.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 20696370 is about 4549.3263237539. The cubic root of 20696370 is about 274.5562872088.

The spelling of 20696370 in words is "twenty million, six hundred ninety-six thousand, three hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 689879 1379758 2069637 3449395 4139274 6898790 10348185 20696370