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12684406948 = 223838279639
BaseRepresentation
bin10111101000000110…
…01011000010100100
31012201222221122011221
423310003023002210
5201434202010243
65454354510124
7626221452163
oct136403130244
935658848157
1012684406948
11541a020754
12255bb95344
131271ba4655
148848973da
154e38b2bed
hex2f40cb0a4

12684406948 has 12 divisors (see below), whose sum is σ = 22255672320. Its totient is φ = 6325643432.

The previous prime is 12684406937. The next prime is 12684406951. The reversal of 12684406948 is 84960448621.

It is a junction number, because it is equal to n+sod(n) for n = 12684406895 and 12684406904.

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, 4138288 + ... + 4141351.

It is an arithmetic number, because the mean of its divisors is an integer number (1854639360).

Almost surely, 212684406948 is an apocalyptic number.

It is an amenable number.

12684406948 is a deficient number, since it is larger than the sum of its proper divisors (9571265372).

12684406948 is a wasteful number, since it uses less digits than its factorization.

12684406948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280026 (or 8280024 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 52.

The spelling of 12684406948 in words is "twelve billion, six hundred eighty-four million, four hundred six thousand, nine hundred forty-eight".

Divisors: 1 2 4 383 766 1532 8279639 16559278 33118556 3171101737 6342203474 12684406948