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2696660 = 2251091237
BaseRepresentation
bin1010010010010111010100
312002000010022
422102113110
51142243120
6133444312
731630661
oct12222724
95060108
102696660
11158204a
12aa0698
13735575
14502a68
15384025
hex2925d4

2696660 has 24 divisors (see below), whose sum is σ = 5719560. Its totient is φ = 1067904.

The previous prime is 2696653. The next prime is 2696663. The reversal of 2696660 is 666962.

It can be written as a sum of positive squares in 4 ways, for example, as 753424 + 1943236 = 868^2 + 1394^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2696660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2696663) 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, 1562 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (238315).

22696660 is an apocalyptic number.

2696660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2696660 is an abundant number, since it is smaller than the sum of its proper divisors (3022900).

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

2696660 is a wasteful number, since it uses less digits than its factorization.

2696660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 2696660 is about 1642.1510283771. The cubic root of 2696660 is about 139.1902231430.

The spelling of 2696660 in words is "two million, six hundred ninety-six thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 1237 2180 2474 4948 6185 12370 24740 134833 269666 539332 674165 1348330 2696660