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1980692 = 227127557
BaseRepresentation
bin111100011100100010100
310201121222222
413203210110
51001340232
6110241512
722556420
oct7434424
93647888
101980692
11113313a
127b6298
1354470c
14397b80
15291d12
hex1e3914

1980692 has 24 divisors (see below), whose sum is σ = 3999744. Its totient is φ = 840672.

The previous prime is 1980673. The next prime is 1980697. The reversal of 1980692 is 2960891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980697) 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, 3278 + ... + 3834.

It is an arithmetic number, because the mean of its divisors is an integer number (166656).

21980692 is an apocalyptic number.

It is an amenable number.

1980692 is an abundant number, since it is smaller than the sum of its proper divisors (2019052).

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

1980692 is a wasteful number, since it uses less digits than its factorization.

1980692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 1980692 is about 1407.3705979592. The cubic root of 1980692 is about 125.5853506384.

The spelling of 1980692 in words is "one million, nine hundred eighty thousand, six hundred ninety-two".

Divisors: 1 2 4 7 14 28 127 254 508 557 889 1114 1778 2228 3556 3899 7798 15596 70739 141478 282956 495173 990346 1980692