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1957028 = 22489257
BaseRepresentation
bin111011101110010100100
310200102112112
413131302210
51000111103
6105540152
722430423
oct7356244
93612475
101957028
111117387
127a4658
13536a08
1438d2ba
15289cd8
hex1ddca4

1957028 has 6 divisors (see below), whose sum is σ = 3424806. Its totient is φ = 978512.

The previous prime is 1957027. The next prime is 1957031. The reversal of 1957028 is 8207591.

It can be written as a sum of positive squares in only one way, i.e., 1304164 + 652864 = 1142^2 + 808^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1956985 and 1957003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1957027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244625 + ... + 244632.

It is an arithmetic number, because the mean of its divisors is an integer number (570801).

21957028 is an apocalyptic number.

It is an amenable number.

1957028 is a deficient number, since it is larger than the sum of its proper divisors (1467778).

1957028 is a wasteful number, since it uses less digits than its factorization.

1957028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489261 (or 489259 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1957028 is about 1398.9381687551. The cubic root of 1957028 is about 125.0832085983.

The spelling of 1957028 in words is "one million, nine hundred fifty-seven thousand, twenty-eight".

Divisors: 1 2 4 489257 978514 1957028