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7916340 = 2235131939
BaseRepresentation
bin11110001100101100110100
3112220012011210
4132030230310
54011310330
6441401420
7124200465
oct36145464
915805153
107916340
114517733
122799270
131842333
1410a0d6c
15a658b0
hex78cb34

7916340 has 24 divisors (see below), whose sum is σ = 22165920. Its totient is φ = 2111008.

The previous prime is 7916323. The next prime is 7916341. The reversal of 7916340 is 436197.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 7916298 and 7916307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7916341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65910 + ... + 66029.

It is an arithmetic number, because the mean of its divisors is an integer number (923580).

Almost surely, 27916340 is an apocalyptic number.

It is an amenable number.

7916340 is an abundant number, since it is smaller than the sum of its proper divisors (14249580).

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

7916340 is a wasteful number, since it uses less digits than its factorization.

7916340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131951 (or 131949 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 7916340 is about 2813.5991185668. The cubic root of 7916340 is about 199.3003889085.

It can be divided in two parts, 7916 and 340, that added together give a triangular number (8256 = T128).

The spelling of 7916340 in words is "seven million, nine hundred sixteen thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 131939 263878 395817 527756 659695 791634 1319390 1583268 1979085 2638780 3958170 7916340