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13970424 = 2331344777
BaseRepresentation
bin110101010010…
…101111111000
3222021202211010
4311102233320
512034023144
61215233520
7226514046
oct65225770
928252733
1013970424
117982206
1248188a0
132b81b30
141bd9396
15135e5b9
hexd52bf8

13970424 has 32 divisors (see below), whose sum is σ = 37613520. Its totient is φ = 4298496.

The previous prime is 13970401. The next prime is 13970459. The reversal of 13970424 is 42407931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13970391 and 13970400.

It is a congruent number.

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, 22077 + ... + 22700.

Almost surely, 213970424 is an apocalyptic number.

It is an amenable number.

13970424 is an abundant number, since it is smaller than the sum of its proper divisors (23643096).

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

13970424 is a wasteful number, since it uses less digits than its factorization.

13970424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44799 (or 44795 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 13970424 is about 3737.7030379633. The cubic root of 13970424 is about 240.8443868390.

The spelling of 13970424 in words is "thirteen million, nine hundred seventy thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 44777 89554 134331 179108 268662 358216 537324 582101 1074648 1164202 1746303 2328404 3492606 4656808 6985212 13970424