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1970949 = 33121193
BaseRepresentation
bin111100001001100000101
310201010122010
413201030011
51001032244
6110124433
722516131
oct7411405
93633563
101970949
111126892
127b0719
13540156
143943c1
1528deb9
hex1e1305

1970949 has 8 divisors (see below), whose sum is σ = 2712832. Its totient is φ = 1271520.

The previous prime is 1970923. The next prime is 1970957. The reversal of 1970949 is 9490791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-1970949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970959) 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, 10504 + ... + 10689.

It is an arithmetic number, because the mean of its divisors is an integer number (339104).

21970949 is an apocalyptic number.

It is an amenable number.

1970949 is a deficient number, since it is larger than the sum of its proper divisors (741883).

1970949 is a wasteful number, since it uses less digits than its factorization.

1970949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21227.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 1970949 is about 1403.9049113099. The cubic root of 1970949 is about 125.3790944701.

The spelling of 1970949 in words is "one million, nine hundred seventy thousand, nine hundred forty-nine".

Divisors: 1 3 31 93 21193 63579 656983 1970949