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8012940 = 22351310273
BaseRepresentation
bin11110100100010010001100
3120002002200120
4132210102030
54022403230
6443424540
7125052225
oct36442214
916062616
108012940
114583271
122825150
1318772b0
1410c824c
15a84310
hex7a448c

8012940 has 48 divisors (see below), whose sum is σ = 24164448. Its totient is φ = 1972224.

The previous prime is 8012929. The next prime is 8012941. The reversal of 8012940 is 492108.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 8012940.

It is not an unprimeable number, because it can be changed into a prime (8012941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4357 + ... + 5916.

It is an arithmetic number, because the mean of its divisors is an integer number (503426).

Almost surely, 28012940 is an apocalyptic number.

It is an amenable number.

8012940 is an abundant number, since it is smaller than the sum of its proper divisors (16151508).

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

8012940 is a wasteful number, since it uses less digits than its factorization.

8012940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10298 (or 10296 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 8012940 is about 2830.7136909267. The cubic root of 8012940 is about 200.1077752454.

It can be divided in two parts, 801 and 2940, that added together give a triangular number (3741 = T86).

The spelling of 8012940 in words is "eight million, twelve thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 10273 20546 30819 41092 51365 61638 102730 123276 133549 154095 205460 267098 308190 400647 534196 616380 667745 801294 1335490 1602588 2003235 2670980 4006470 8012940