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13970812 = 227149193
BaseRepresentation
bin110101010010…
…110101111100
3222021210100111
4311102311330
512034031222
61215235404
7226515142
oct65226574
928253314
1013970812
117982529
124818b64
132b8206b
141bd9592
15135e777
hexd52d7c

13970812 has 12 divisors (see below), whose sum is σ = 24793776. Its totient is φ = 6886880.

The previous prime is 13970783. The next prime is 13970839. The reversal of 13970812 is 21807931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24313 + ... + 24880.

It is an arithmetic number, because the mean of its divisors is an integer number (2066148).

Almost surely, 213970812 is an apocalyptic number.

It is an amenable number.

13970812 is a deficient number, since it is larger than the sum of its proper divisors (10822964).

13970812 is a wasteful number, since it uses less digits than its factorization.

13970812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49268 (or 49266 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 13970812 is about 3737.7549411378. The cubic root of 13970812 is about 240.8466164721.

The spelling of 13970812 in words is "thirteen million, nine hundred seventy thousand, eight hundred twelve".

Divisors: 1 2 4 71 142 284 49193 98386 196772 3492703 6985406 13970812