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2071954 = 21035977
BaseRepresentation
bin111111001110110010010
310220021012001
413321312102
51012300304
6112224214
723416453
oct7716622
93807161
102071954
111195765
1283b06a
13577111
143bd12a
152adda4
hex1f9d92

2071954 has 4 divisors (see below), whose sum is σ = 3107934. Its totient is φ = 1035976.

The previous prime is 2071939. The next prime is 2071957. The reversal of 2071954 is 4591702.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1159929 + 912025 = 1077^2 + 955^2 .

It is not an unprimeable number, because it can be changed into a prime (2071957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 517987 + ... + 517990.

22071954 is an apocalyptic number.

2071954 is a deficient number, since it is larger than the sum of its proper divisors (1035980).

2071954 is a wasteful number, since it uses less digits than its factorization.

2071954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035979.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2071954 is about 1439.4283587591. The cubic root of 2071954 is about 127.4852783207.

It can be divided in two parts, 2071 and 954, that added together give a square (3025 = 552).

The spelling of 2071954 in words is "two million, seventy-one thousand, nine hundred fifty-four".

Divisors: 1 2 1035977 2071954